Question

the following data set outlines the scores students had on an algebra test. 48 68 89 99 45 75 45 41 77 55 75 47 74 83 83 i) fill in the frequency table(below) scores score frequency 40 - 49 no : ( 50 - 59 no : ( 60 - 69 no : ( 70 - 79 no : ( 80 - 89 no : ( 90 - 99 no : ( ii) draw a histogram (below) by moving the dot on the left of each bar up

Explanation:

Step1: Count scores in 40 - 49

The scores in the range 40 - 49 are 48, 45, 41, 45, 47. So the frequency is 5.

Step2: Count scores in 50 - 59

The score in the range 50 - 59 is 55. So the frequency is 1.

Step3: Count scores in 60 - 69

The score in the range 60 - 69 is 68. So the frequency is 1.

Step4: Count scores in 70 - 79

The scores in the range 70 - 79 are 75, 75, 77, 74. So the frequency is 4.

Step5: Count scores in 80 - 89

The scores in the range 80 - 89 are 89, 83, 83. So the frequency is 3.

Step6: Count scores in 90 - 99

The score in the range 90 - 99 is 99. So the frequency is 1.

Answer:

Score	Frequency
50 - 59	1
60 - 69	1
70 - 79	4
80 - 89	3
90 - 99	1