Statistics & Probability Revision (Yr 8) | Baamboozle - Baamboozle

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A represents people who like apples and B represents people who like bananas. What is the probability that a student doesn't like apples or bananas?

4/10 or 40% or 2/5

A represents people who like apples and B represents people who like bananas. What is the probability that a student likes apples or bananas but not both?

40%, 4/10, 2/5, 0.4

If you roll a standard die 90 times, how many times would you expect to get a number more than 4?

30

What is the probability of landing on blue or orange?

2/5 or 40%

What is the median?

3

Two 6-sided dice are rolled and the numbers added. What is the probability of getting a sum of 1?

0

Looking at the frequency table, which score is the mode?

3

Bob is a Year 8 student who wants to find out the favourite sport of Year 8 students at his school. He surveys his own class to get results. What is the sample in this case?

His class.

How many people were surveyed?

11

What is the range?

28

A survey question asks how many cars you own. What type of data is being collected? (Continuous, Discrete, Ordinal or Nominal)

Discrete

Bob is a Year 8 student who wants to find out the favourite sport of Year 8 students at his school. He surveys his own class to get results. What is the population in this case?

All year 8 students at his school.

A spinner has 3 colours - Blue, Red and Green. If the probability of landing on Blue is 1/7 and the probability of landing on Red is 4/7. What is the probability of landing on Green?

2/7

Angela scored the following runs in her last seven cricket matches. If she scores 25 in her next match, how will it affect the mean and median?: 3, 5, 8, 8, 8, 17, 17

The mean will increase, the median will stay the same

What is the median?

46

Jack gets the following results on a survey: 31, 40, 40, 43, 51, 52, 52, 58, 60, 67, 73, 75. Would a column graph or stem-leaf plot be best to display the data?

Stem and Leaf plot

The probability of flipping a tails on a biased coin is 0.37. What is the probability of flipping a heads?

0.63

What is one difference between a histogram and a column graph?

No gaps between columns. Column graphs generally for categorical data.

A survey was done with A representing people who like apples and B representing people who like bananas. What is the probability of randomly selecting someone who likes either bananas or apples?

60% or 6/10 or 3/5

The 2-way table shows results from students in a class. What is the probability of randomly picking someone who is left-handed?

11/37

Two 6-sided dice are rolled and the numbers added. What is the probability of getting a sum of 12?

1/36 or 0.028

What is the mean of the following data set: 3, 8, 8, 8, 11, 17, 17

10.29