Statistics and Probability (NATG12 REVIEW)

A box plot has been drawn to show the heights of some petunia seedlings, in centimetres. Find the interquartile range.

• 6

• 11

• 7

• 8

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

If 3 coins are tossed simultaneously, find the probability of getting exactly two tails.

Tags

CCSS.HSS.CP.B.9

A random sample of people were asked "How many devices have you used to browse the internet in the last month?". The result are displayed in the graph.

How many people were surveyed?

• 50

• 57

• 42

• 61

Tags

CCSS.6.SP.B.5A

• 0.621

• 0.33

• 0.422

• 0.245

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

The table shows the distribution of marks obtained on a test. Find the standard deviation of the test scores.

• 2.3

• 1

• 1.5

• 2

If the correlation coefficient r = 0.98 then it refers to a ... correlation

• very strong

• weak

• moderate

• strong

Tags

CCSS.HSS.ID.B.5

The frequency table shows the number of cars owned by different families. Calculate the median.

• 1

• 4

• 10

• 5

Tags

CCSS.6.SP.B.5C

Supposed two coins are tossed consecutively and we are interested in the number of heads that will come out. Determine the values of the random variable H (number of heads).

• 0,2,3,4

• 0,1,2,3

• 0,1,2

• 0,1,2,3,4

Two coins are tossed in an experiment. Which of the following list is the sample space?

• S= {HH, HT, TH, TT}

• S= {HH, TT}

• S= { HT, TH, TT}

• S= {HH, HT, TT}

Tags

CCSS.7.SP.C.8B

One ball is drawn from each of the boxes shown. Find the probability that at most one blue ball is drawn.