ch4 revision

group1

100

what is the probability of choosing a letter other than "A" in the word "ALGEBRA"?

5\7

200

If P(A)=P(B),then the two events A and B are                   a) dependent

b)independent

c) equally likely

d) mutually exclusive          

c

300

• A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(both marbles are purple)

a) 1/3              c) 1/2

 b) 2/9             d) 1/4

b

400

• I want to arrange 5 people in a row out of a class of 10 people. Number of ways =

10p5=30240

500

A number is selected randomly from a hat containing all the integers from 10 to 50. Find P(even l greater than 40).

0.5

group2

100

what is the probability of choosing a letter other than "E" in the word "ALGEBRA"?

6\7

200

If P(A/B)=P(B),then the two events A and B are                   a) dependent

b)independent

c) equally likely

d) mutually exclusive 

b

300

• A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(both marbles are green)

a) 1/3              c) 1/2

 b) 2/9             d) 1/15

d

400

How many 2-digit numbers can you make using the digits 1, 2, 3, & 4 without repeating the digits?

4p2=12

500

A number is selected randomly from a hat containing all the integers from 10 to 50. Find P(even l greater than 30).

0.5