$1960

$960

$15360

$2960

The mean of the first 13 natural numbers is :

8

10

7

11

Is this sample of the audience members likely to be biased?

Yes

No

Can’t say

Not possible

1/3

1/9

2/3

2/9

2/3

1/3

4/9

2/9

101

100

99

98

2m-b

2m+b

m+b

m-b

For which set of numbers do the mean, median, and mode all have the same values?

1,3,3,3,5

1,3,3,4,5

1,2,2,3,5

1,2.4.3,5