統計と確率
データ分析、確率分布、仮説検定、統計手法。
-
ravi found three pieces of wire in his tool drawer. here are their leng…
40.12 centimeters
-
for each scenario, choose the best statement. | scenarios | statements …
(a) The boxer is 0 pounds from her starting weight. (b) The bird is at its initial height. (c) You have less money than you started with.
-
for each scenario, choose the best statement. | scenarios | statements …
(a) The overall change in the company's size is 0 employees. (b) The temperature is higher than its beginning value. (c) The roller coaster is below its initial height.
-
write an equation to represent the situation. (chart: title used for pi…
$y = 4 - 0.5x$
-
12. the graph shows the relationship between the cost of a pizza, y, an…
$y=2x+6$
-
as the buncombe county schools sign language interpreter, kiran, gets p…
## System of Equations: Equation 1: $x + y = 27$ Equation 2: $35.50x + 42y = 991$ ## Final Counts: Kiran attended 22 parent-teacher conferences and 5 school-related assemblies.
-
a printer is printing photos. for every 10 photos, the printer takes 2 …
| Number of photos | 10 | 25 | 35 | 40 | 50 | |------------------|----|----|----|----|----| | Time (minutes) | 2 | 5 | 7 | 8 | 10 |
-
katie has a puppy that weighs 7 pounds. katies brother, ryan, has a pup…
D. The weight of Ryan’s puppy is greater than 7 pounds because \(\frac{8}{7}\) is greater than 1.
-
how many plants were $2\\frac{1}{4}$ feet tall? height of plants dot pl…
2
-
adam gave \\(\frac{2}{8}\\) of an apple to each of 3 friends. the equat…
D. $\frac{6}{8}$
-
crystal blue lake rose exactly $\frac{1}{5}$ foot each day for 22 days.…
C. $4\frac{2}{5}$ feet
-
practical math cp 12.) 32% of 74 is what? 13.) 76 is 33% of what? 14.) …
23.68 ### Question 13: 76 is 33% of what?
-
calculate the appropriate percentages. 9.) 23% of 39 is what? 10.) 97 i…
8.97 ### Question 10
-
find the mean for this set of scores. 42.1 58.4 64.4 185.3 78.4 mean =
81.72
-
fill in the missing number. 12% of 4,125 = submit
495
-
fill in the missing number. 87% of 900 = submit
783
-
what is 82% of 950? submit
779
-
what is 76% of 900?
684
-
what is 22% of 400?
88
-
what is 11% of 100? submit
11
-
complete the following statement. 48% of $25 = $\\boxed{ submit
12
-
what is 83% of $600? $ blank submit
\( \$498 \)
-
what is 90% of $40? $
$36$
-
complete the following statement. 31% of $600 = $\\boxed{ submit
\( 186 \)
-
what is 5% of 40? submit
2
-
what is the constant of proportionality for the relationship shown in t…
$\frac{1}{2}$
-
what is the meaning of the word bleak, as it is used in paragraph 1? a …
A. not hopeful or encouraging
-
fill in the missing number. 35% of 60 = \\square
21
-
what is the constant of proportionality in this proportional relationsh…
$\boldsymbol{\frac{5}{4}}$ (corresponding to the second option)
-
what is 80% of $70? $ blank submit
56
-
does the relationship in this table represent a proportional relationsh…
The relationship **does** represent a proportional relationship.
-
what is 40% of 90?
36
-
what is 70% of $10? $\\square
$7$
-
fill in the missing number. 20% of 15 = \\square
3
-
which table shows a proportional relationship between x and y? option 1…
The table with $x$ values 1, 5, 8, 10 and $y$ values 15, 75, 120, 150 (the second option) shows a proportional relationship.
-
what is 25% of 32?
8
-
what is 10% of 50?
5
-
what is 90% of $10? $□ submit
$9$
-
a cars distance traveled is monitored over time. the results are displa…
55
-
naomi ordered a set of beads. she received 200 beads, and 73% of them w…
146
-
last tuesday was silly hat day at hansens school. of the 100 students a…
7
-
96% of the 700 runners in a marathon were women. how many women ran the…
672
-
b. list two different combinations of coins, each with a value of 150% …
Combination 1: 1 dollar coin and 1 half - dollar coin. Combination 2: 1 dollar coin and 5 dimes. (Other valid combinations are also acceptable, e.g., 3 half - dollar coins, 15 dim…
-
85% of the tickets sold at a school carnival were early - admission tic…
170
-
this table represents the number of hours dana worked and the amount of…
The paired values in the table **represent** a proportional relationship, because the ratio of money earned to hours worked is **constant (equal to 10)**.
-
last tuesday was silly hat day at derek’s school. of the 800 students a…
440
-
ed ordered a set of beads. he received 9,000 beads, and 15% of them wer…
1350
-
4. noah bought 6 bracelets for $8.28. at this rate: a. how many bracele…
10 ### Part b
-
at hayleys hats, 35% of the 20 hats are baseball caps. how many basebal…
7
-
in paragraph 1, the author says that before world war i, the u.s. gover…
A. The government's role in day - to - day life was not clear to people.
-
this morning, cameron took a history test. there were 80 multiple - cho…
52
-
the table of paired values represents a proportional relationship. | x …
C. 5
-
15% of the tickets sold at a water park were child tickets. if the park…
123
-
the table of paired values represents a proportional relationship. | x …
2
-
the state transportation commission counted cars traveling east and wes…
407
-
algebra 1 sem2 lesson 2.2 - using gcf to factor < 9 of 9 1 2 3 4 5 6 7 …
(3x-4)(x^2+3)
-
there are 700 hotel rooms in bellas city. during a convention, 20% of t…
140
-
is the relationship proportional? a 2 4 6 8 10 b 8 16 24 32 40 select t…
True
-
cassie brought chocolate and vanilla cupcakes to school for her birthda…
60
-
is the relationship proportional? x: 1, 3, 5, 7, 9 y: 4, 10, 16, 22, 28…
False
-
richard’s city took a telephone poll about a plan to build a new hotel …
72000
-
there are 10,000 houses in gavins town. last summer, 70% of the houses …
7000
-
jose is a software salesman. let y represent his total pay (in dollars)…
\(70\) ### Part (b)
-
lexi has a new beaded necklace. 10% of the 60 beads on lexis necklace a…
6
-
is the relationship proportional? x 3 6 9 12 15 y 6 12 18 24 30 select …
True (The relationship between x and y is proportional.)
-
philip took a math quiz last week. there were 40 problems on the quiz a…
28
-
13a. mary is making punch for a party. she makes 95 ounces of punch. sh…
Number of 6 - ounce glasses: 15; Number of 8 - ounce glasses: 11 ### Part 13b
-
there are 85 seats on a train. 80% of the seats are empty. how many emp…
68
-
maries tea shop has caffeinated tea and decaffeinated tea. during the l…
3
-
estimate the sum. round each number to the nearest hundred, then add. $…
700
-
the lunch choices last friday were mushroom or pepperoni pizza. the caf…
63
-
the local water slides have 68 employees, of which 75% are temporary. h…
51
-
at whitneys hats, 40% of the 50 hats are baseball caps. how many baseba…
20
-
fill in the missing number, □% of 700,000 = 70,000
10
-
name : 1. what percentage of a dollar is the value of each coin combina…
15% #### Part b: 2 dimes and 7 pennies
-
6 is what percent of 15? write your answer using a percent sign (%). su…
\(40\%\)
-
here is a table of paired values. | x | 0.3 | $1\\frac{1}{3}$ | 1.5 | $…
$\frac{y}{x} = \frac{1\frac{1}{2}}{0.3} = 5$ $\frac{y}{x} = \frac{6\frac{2}{3}}{1\frac{1}{3}} = 5$
-
complete the following statement. write your answer as a decimal or who…
20
-
the paired values in the table represent a proportional relationship. f…
5
-
13a. mary is making punch for a party. she makes 95 ounces of punch. sh…
Number of 6-ounce glasses: 15 Number of 8-ounce glasses: 11
-
fill in the missing number. \\boxed{}% of 4,000 = 2,400
60
-
$22,500 is what percent of $30,000? write your answer using a percent s…
75%
-
complete the following statement. write your answer as a decimal or who…
50
-
find the average rate of change over the interval 10, 40
-6.7
-
select the correct answer. which of these words most clearly means \poi…
B. perspective
-
36 is what percent of 48? write your answer using a percent sign (%).
75%
-
fill in the missing number. □% of 80 = 20 submit
25
-
complete the following statement. write your answer as a decimal or who…
50
-
find the average rate of change over the interval 40, 80
15
-
drag and drop to match the meaning to the images from \the morns are me…
- the berry's cheek → the state of the skin of the fruit - a gayer scarf → the color of the leaves fallen onto the fields - the scarlet gown → the color of the leaves changing on …
-
select all the ratios equivalent to 2:4. □ \\(\\frac{1}{2}\\) □ \\(\\fr…
$\frac{1}{2}$, $\frac{4}{8}$, $\frac{6}{12}$
-
select from the drop-down menus to complete each statement. the ratio r…
The ratio represented by the tape diagram on top is $\boldsymbol{2:4}$ (or simplified $\boldsymbol{1:2}$), and the ratio represented by the tape diagram on bottom is $\boldsymbol{…
-
the race to build the transcontinental railroad 1 the completion of the…
A. Triumph – It conveys pride and success
-
the peachtree road race: a race like no other dave morrow 1 a common go…
D. suggest positive things about the peachtree road race
-
how does the author’s use of the word \binge\ in the last sentence impa…
The word "binge" (often associated with excessive but enjoyable activities like a Netflix binge) is used playfully. It makes the concept of scheduling free time more relatable and…
-
determine whether the statement refers to reading a poem or listening t…
1. Use context to determine the meaning of unfamiliar words. → Reading 2. Determine the tone of the poem through inflections and pacing. → Listening 3. Use the form of the poem to…
-
4. altogether, 5 identical crates weigh \\(\\frac{1}{4}\\) of a ton. a.…
Cada caja pesa $\frac{1}{20}$ toneladas. ### Part b
-
read this passage from the poem \my father is a simple man.\ the street…
- The lack of rhythm shows the easy relationship. - The lack of rhyme contributes to a casual tone.
-
math test scores no of students 5 4 3 2 1 0 60-69 70-79 80-89 90-99 tes…
B. 8
-
7 gullible (gŭl’ə-bəl) -adjective __ gullible means - candace is so gul…
7. C. easily fooled. 8. A. likely. 9. B. stingy. 10. B. one who expects the worst.