Question

question 17
for the following data, n =
4 2
3 3
2 1
1 2
o 8
o 10
o 20
o 18
question 18
which term is used to describe the shape of a frequency - distribution graph in which most scores pile up on the left - hand side of the graph and taper off to the right?
o symmetrical
o positively skewed
o negatively skewed
o normal

Explanation:

Step1: Define N in statistics

In statistics, N represents the total number of data - points.

Step2: Count data - points

Count the number of values in the given data set. We have 2 + 3+1 + 2=8 data - points.

Step3: Answer question 18

In a frequency - distribution graph, when most scores pile up on the left - hand side and taper off to the right, it is called positively skewed. A symmetrical distribution has equal tails on both sides, a negatively skewed distribution has scores piling up on the right and tapering off to the left, and a normal distribution is bell - shaped and symmetrical.

Answer:

Question 17: 8
Question 18: B. positively skewed