univariate data test

 

Describe the difference between a population and a sample in terms of data collection.

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The scores awarded to 25 students for an assignment were as follows: 4  7  5  9  8  6  7  7  8  5  6  9  8    5  8  7  4  7  3  6  8  9  7  6  9 What is  the mode?

Find the median of these numbers:4,2,7,4,3

Which statement is true?

• The premium sold in week 1 is half of the standard sold in week 1.

• The total number of memberships sold during Week 1 was equal to the total number of memberships sold during Week 2.

• The total number of memberships sold during Week 4 was 35 less than the total number of memberships sold during Week 3.

• The number of premium memberships sold during Week 3 was 2 times the number of premium memberships sold during Week 2.

 

Which statement is true?

• The mode for Jamal is greater than the mode for Kendall.

• The range for Jamal is greater than the range for Kendall.

• Kendall's furthest run was less than Jamal's furthest run.

• Kendall's median is less than Jamal's median.

Choose the option that is true.

• Q1 for group B is greater than Q1 for group A

• The median for group A is less than group B.

• The range for group B is greater than the range for group A.

• The minimum for group A is larger than the minimum for group B.

Draw a Stem and Leaf Diagram for: 34, 56, 44, 46, 45, 37, 53

Draw a box and whisker chart with the following data.

1， 3， 4， 5， 11， 12， 14， 20， 11， 2

Select all the statements that are true.

• Eight families had 4 children.

• The maximum number of children in any family is 4.

• Three families had 12 children.

• ‘7’ in the frequency column means a family had 7 children.

If everyone’s answer was recorded,

how many people said they would not buy any of the brands?