I AM NOT SURE OF THESE QUESTIONS HELP PLEASE!! Question 4 For the sampling distr

Question

I AM NOT SURE OF THESE QUESTIONS HELP PLEASE!!

Question 4

For the sampling distribution of sample means, sampling error will decrease as sample size increases.

True

False

Question 8

If Reina places in the 99th percentile on an exam, she performed better than 99% of all students who completed the exam. Her performance is similar to a statement based on a __________.

Frequency table

Cumulative frequency distribution

Histogram

Pie chart

Question 9

A rug manufacturer has decided to use seven compatible colors in her rugs. However, in weaving a rug, only five spindles can be used. In advertising, the rug manufacturer wants to indicate the number of different color groupings for sale. How many color groupings using the seven colors taken five at a time are there? (This assumes that five different colors will go into each rug—in other words, there are no repetitions of color.)

840

42

21

7

Frequency table

Cumulative frequency distribution

Histogram

Pie chart

Question 9

A rug manufacturer has decided to use seven compatible colors in her rugs. However, in weaving a rug, only five spindles can be used. In advertising, the rug manufacturer wants to indicate the number of different color groupings for sale. How many color groupings using the seven colors taken five at a time are there? (This assumes that five different colors will go into each rug—in other words, there are no repetitions of color.)

840

42

21

7

Explanation / Answer

Solution:-

4 ) True

8) option b) Cumulative frequency distribution

9) option c) 21.

Explanation:- 7!/(5!*2!) = (7*6*5!)/(2*5!)=21

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