2nd Block MIDTERM AMC Fall 20-21

Which box and whisker plot has the smaller IQR?

• Top plot

• Bottom plot

How do find the frequency of a number in a set of data?

• You put the numbers in order from least to greatest and find the middle.

• Honestly, I haven't been paying attention.

• You count how many of the number there is the set of data.

• If it is the third number in the set then the frequency is three.

TRUE or FALSE: 75 is the mean of the data set 68, 67, 75, 73, 72

• TRUE

• FALSE

Spread is the ________, or difference, between least and greatest values.

How many data points are represented in this dot plot?

What is the range of the data set shown in the stem and leaf plot?

What is the class width if you have a data set with a maximum value of 100, a minimum value of 25, and you are asked to construct a 4 class frequency distribution?

• 19

• 18

• 12

• none of the above

How many students scored more than 90%?

Look at the frequency distribution. Find the class boundaries.

• 21, 31, 41, 51, 61, 70, 80

• 20.5, 30.5, 40.5, 50.5, 60.5, 70.5

• 25.5, 35.5, 45.5, 55.5, 65.5, 75.5

• 30, 40, 50, 60, 70, 80

What is incorrect about the following histogram?

• The intervals are too small

• The intervals overlap

• There are no class boundaries, so the bars shouldn't touch

• Nothing is wrong with this histogram