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This set of MCQs helps you brush up on important math topics and prepare you to dive into skill practice.
A man earned $960 per month during the first 7 months and $960 per month during the next 9 months. Find his average monthly earnings during this period.
$1960
$960
$15360
$2960
The mean of the first 13 natural numbers is :
8
10
7
11
Nancy, a talk show host, invited the studio audience to voice their opinions on raising the driving age. Of the 10 audience members who chose to speak, 2 of them were against the idea.
Is this sample of the audience members likely to be biased?
Yes
No
Can’t say
Not possible
A bowl contains 30 identical balls numbered 1 to 30. A ball is drawn at random from the bowl. The probability that the number on the ball is a multiple of 3 is:
1/3
1/9
2/3
2/9
The probability of choosing, by random selection, a white ball from a bag containing 3 red balls, 2 white balls, and 4 brown balls is:
2/3
1/3
4/9
2/9
The mean of a set of seven numbers is 81. If one of the numbers is discarded, the mean of the remaining numbers is 78. The value of a discarded number is,
101
100
99
98
Let m be the midpoint and b be the upper limit of a class in a continuous frequency distribution. The lower limit of the class is,
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
