Data - Essential Ch 5

The RANGE and INTER QUARTILE RANGE measure the ...........

• Spread of the Data

• Typical value

• AVeragv

• Lower Quartile

The ages of people who visited the uniform shop last week are:

11, 12, 12, 12, 13, 17, 17, 38, 45, 47,51

Select ALL the correct statements.

• The modal age is 12

• There was a total of 11 people

• The median age is 13

• The average age is greater than 17

Complete the missing word.

The median is the ............ number once the data has been ordered.

The largest value shown is

• 92

• 97

• 2667

• 92667

The back-to-back stem plot shows the results in an English exam.

Select ALL the correct statements.

• The top score was from a girl

• The bottom score was from a girl

• More boys sat this test than girls

• The mode for girls is 4

The total number of students shown in this two-way table is

• 38

• 40

• 50

• 106

The histogram shows heights of trees in metres.

Select ALL the correct statements.

• The tallest height is 13m

• 13m is an outlier

• 11.2m is an outlier

• There were 15 trees in this survey

14 people were asked how many hours they spend on exercise and video games each week.

Calculate the mean number of hours spent on video games to 1d.p.

• 7.8 hours

• 8.7 hours

• 8.8 hours

• 9.5 hours

Find the median of this data.

• 80

• 81

• 82

Tally marks are used to find the ................

Select the best option.

• answer

• average

• frequency

• median