8th Grade > Mathematics
DATA HANDLING MCQs
Total Questions : 57
| Page 2 of 6 pages
Answer: Option B. -> 112
:
B
Totalhours(as per the pie chart)= 12 + 2 + 2 + 8 = 24 hours
Total number of hours spent in the gym = 2 hours
The proportion of time spent in gym
=hours spent in the gymtotal number of hours=224=112
:
B
Totalhours(as per the pie chart)= 12 + 2 + 2 + 8 = 24 hours
Total number of hours spent in the gym = 2 hours
The proportion of time spent in gym
=hours spent in the gymtotal number of hours=224=112
Answer: Option A. -> Einstein
:
A
ScientistNameFrequencyHawking1Einstein4Newton1Tesla3Faraday2
From the above frequnecy table, we find that the maximum frequency is 4 which corresponds to Einstein.
Hence, Einstein is the name whose frequency is the highest.
:
A
ScientistNameFrequencyHawking1Einstein4Newton1Tesla3Faraday2
From the above frequnecy table, we find that the maximum frequency is 4 which corresponds to Einstein.
Hence, Einstein is the name whose frequency is the highest.
Answer: Option B. -> False
:
B
The cards are numbered as 1,2,3,4,5,6,7
Total number of outcomes = 7
Number of odd numbers (favourable outcomes) = 4
Number of even numbers (favourable outcomes) = 3
Probability=Number of favourable outcomesTotal Number of outcomes
Probability of getting odd number
=Number of odd numbered cardsTotal number of cards;
=47
Probability of getting even number
=Number of even numbered cardsTotal number of cards
=37
Probabilities are different. Hence, the statement is false.
:
B
The cards are numbered as 1,2,3,4,5,6,7
Total number of outcomes = 7
Number of odd numbers (favourable outcomes) = 4
Number of even numbers (favourable outcomes) = 3
Probability=Number of favourable outcomesTotal Number of outcomes
Probability of getting odd number
=Number of odd numbered cardsTotal number of cards;
=47
Probability of getting even number
=Number of even numbered cardsTotal number of cards
=37
Probabilities are different. Hence, the statement is false.
:
HeightNumber of Students150-1544155-1593160-1642165-1691170-1742175-1792180-1844185-1892Total20
Number of students above the height of 169 = 2+2+4+2=10
Answer: Option C. -> 25%
:
C
The total area of the pie chart(gilrs and boys) = 100%
The white region is the percentage of girls = 100% – percentage of boys
100% -75% = 25 %
The percentage of the girls in the class is 25%
:
C
The total area of the pie chart(gilrs and boys) = 100%
The white region is the percentage of girls = 100% – percentage of boys
100% -75% = 25 %
The percentage of the girls in the class is 25%
Answer: Option D. -> 47
:
D
Probability=Number of favourable outcomesTotal Number of outcomes
Number of green balls (favourable outcomes) =8
Total number of balls (total outcomes) = 14
So probability of getting a green ball
=Number of green ballsTotal number of balls =814 =47
:
D
Probability=Number of favourable outcomesTotal Number of outcomes
Number of green balls (favourable outcomes) =8
Total number of balls (total outcomes) = 14
So probability of getting a green ball
=Number of green ballsTotal number of balls =814 =47
Answer: Option A. -> 0
:
A
The probability of getting a white ball is 0 as there are 0 white balls.
:
A
The probability of getting a white ball is 0 as there are 0 white balls.
Answer: Option D. -> Rs 375
:
D
2 bags comprise Rs 300 so 1 will comprise Rs 150
And half bag will have1502=Rs.75
So, 2 bags and a half comprise 300 + 75 = Rs 375
:
D
2 bags comprise Rs 300 so 1 will comprise Rs 150
And half bag will have1502=Rs.75
So, 2 bags and a half comprise 300 + 75 = Rs 375
Answer: Option D. -> Raw data
:
D
Data available to us in an unorganised form is called raw data.
:
D
Data available to us in an unorganised form is called raw data.
Answer: Option C. -> 113
:
C
Number of aces = 4
Total number of cards = 52
Probability of getting an ace
=No. of acesTotal no. of cards
=452
=113
:
C
Number of aces = 4
Total number of cards = 52
Probability of getting an ace
=No. of acesTotal no. of cards
=452
=113
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