Jambmaths

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Maths Question
Question 41

No

1

2

3

4

5

6

Frequency

30

43

54

40

41

32

A dice is rolled 240 times and the result depicted in the table above. If a pie chart is constructed to represent the data, the angle corresponding to 4 is

Question 42

Interval(Years)

10–12

13–15

16–18

19– 20

21–23

No of Pupils

6

14

15

10

32

The table above shows the frequency distribution of ages (in years) of pupils in a certain secondary, what percentage of the total number of pupils is over 15 but less than 21 years

Question 43

Interval(Years)

10–12

13–15

16–18

19– 20

21–23

No of Pupils

6

14

15

10

32

The table above shows the frequency distribution of ages (in years) of pupils in a certain secondary

The cumulative frequency curve above represent the ages of students in a school which age group do 70% of the students belong

Question 44

Find the sum of the range and mode of the set of numbers 10,5, 10, 9,8, 7,7,10, 8,10, 8,4, 6,9,10,9,10,9,7,10,6,5.

Question 45

 If the mean of number 0, x, x + 2, 3x + 6, and 4x + 8 is 4. Find the mean deviation

Question 46

The variance of x, 2x, 3x, 4x and 5x is

Question 47

In how many can a delegation of 3 be chosen from among 5 men and 3 women. If at least one man and at least one woman must be included.

Question 48

In how many ways can the word “MATHEMATICS” be arranged?

Question 49

X and Y are two events. The probability of X or Y is 0.7 and the probability of X is 0.4. If X and Y are independent. Find the probability of Y

Question 50

If U ={x: x is an integer and 1≤ x ≤ 20}

E1 = {x: x is a multiple of 3}

E2 = {x: x is a multiple of 4}

and an integer is picked at random from U,  find the probability that it is not in E2

 

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