Stats Chap 2 Test

number; proportion

A frequency distribution lists the_____ of occurrences of each category of​ data, while a relative frequency distribution lists the ___ of occurrences of each category of data.

a) 7 b) 12 c) 6 d)3 e)6% f)bell-shaped

An experiment was conducted in which two fair dice were thrown 100 times. The sum of the pips showing on the dice was then recorded. The frequency histogram to the right gives the results. Use the histogram to complete parts​ (a) through​ (f). ​(a) What was the most frequent outcome of the​ experiment? ​(b) What was the least​ frequent? ​(c) How many times did we observe a 3​? ​(d) How many more 10​'s were observed than 11​'s? ​(e) Determine the percentage of time a 3 was observed. ​(f) Describe the shape of the distribution. Choose the correct answer below.

10,11,13,21,24,24,27,29,33,35,35,35,37,39,40,41

Determine the original set of data.

False

Determine whether the following statement is true or false. The shape of the distribution shown is best classified as skewed left. - the shape is lowering to the right

The relative frequencies add up to 1.

In a relative frequency​ distribution, what should the relative frequencies add up​ to?

lower; upper

The​ ______ class limit is the smallest value within the class and the​ ______ class limit is the largest value within the class.

classes

are the categories by which data are grouped.

class width

is the difference between consecutive lower class limits.