Year 9 5.2 Probability

Front

A letter is chosen at random from the word XYLOPHONE. What is the probability that it is an O?

Back

Front

The values of x and y in the two-way table are:

Back

x=12, y=8

Front

From rolling a biased dice, it is found that the probability of getting a 5 is 0.3. From 500 rolls of the dice, how many 5's would be expected?

Back

150

Front

What is the median of the data in this stem-and-leaf plot?

Back

71

Front

What is the range of data in this stem-and-leaf plot?

Back

33

Front

Jacob achieved scores of 12, 9, 7, 12 in his last four science tests. What score must he get in his next test to have a mean of 11?

Back

15

Front

What is the probability of rolling a number less than 5 on a normal dice?

Back

Front

From the two-way table, P(both A and B) is

Back

Front

Probability of selecting a blue marble from a bag of 40 marbles, where 28 are blue.

Back

0.7

Front

In a bag of 40 marbles, 28 are blue. If a marble is selected 50 times with replacement, the number of blue marbles you would expect to select is:

Back

35