Statistics Mock Test 13 - Online MCQ Exam

In an office, totally there are 6400 employees and 65% of the total employees are males. 25% of the males in the office are at-least 50 years old. Find the number of males aged below 50 years?

1 Mark(s)

Your Answer:

1040 1040
2080 2080
3120 3120
4160 4160
None of these None of these

If a > b and b > a. Then ?

1 Mark(s)

Your Answer:

a = b a = b
a ≠ b a ≠ b
Cannot be evaluated Cannot be evaluated
None None

How many paying stones, each measuring 2 1/2 m * 2 m are required to pave a rectangular court yard 30 m long and 16 1/2 m board?

1 Mark(s)

Your Answer:

99 99
90 90
95 95
100 100

The number of rational numbers between  and  is:

1 Mark(s)

Your Answer:

A) 0 A) 0
B) 1 B) 1
C) 3 C) 3
D) uncountable D) uncountable

In the following figure, which pair of angles are not corresponding angles?

1 Mark(s)

Your Answer:

A) ∠1, ∠5 A) ∠1, ∠5
B) ∠2, ∠6 B) ∠2, ∠6
C) ∠3, ∠7 C) ∠3, ∠7
D) ∠3, ∠5 D) ∠3, ∠5

Kamal started a business investing Rs. 9000. After five months, Sameer joined with a capital of Rs. 8000. If at the end of the year, they earn a profit of Rs. 6970, then what will be the share of Sameer in the profit?

1 Mark(s)

Your Answer:

Rs. 1883.78 Rs. 1883.78
Rs. 2380 Rs. 2380
Rs. 3690 Rs. 3690
Rs. 3864 Rs. 3864

A and B start a business, with A investing the total capital of Rs.50000, on the condition that B pays A interest @ 10% per annum on his half of the capital. A is a working partner and receives Rs.1500 per month from the total profit and any profit remaining is equally shared by both of them. At the end of the year, it was found that the income of A is twice that of B. Find the total profit for the year?

1 Mark(s)

Your Answer:

53000 53000
58000 58000
50000 50000
59000 59000

A can do (1/3) of a work in 5 days and B can do (2/5) of the work in 10 days. In how many days both A and B together can do the work ?

1 Mark(s)

Your Answer:

75/8 days 75/8 days
44/6 days 44/6 days
48/5 days 48/5 days
None of these None of these

If n = 400 and P=.69 then 90% C.I for P is _________________?

1 Mark(s)

Your Answer:

652 and . 728 652 and . 728
.314 and .652 .314 and .652
.798 and .745 .798 and .745
None of these None of these

If * is a binary operation on set of integers I defined by a * b = 3a + 4b – 2, then find the value of 4 * 5.

1 Mark(s)

Your Answer:

A) 35 A) 35
B) 30 B) 30
C) 25 C) 25
D) 29 D) 29

If 1 + cos2 θ is equal to 3 sin θ.cos θ, then what is the value of cot θ?

1 Mark(s)

Your Answer:

1 1
0 0
2 2
3 3

A man buys 10 articles for Rs. 8 and Sells them at the rate of Rs. 1.25 per article. His gain is:________?

1 Mark(s)

Your Answer:

20% 20%
50% 50%
19 ½ % 19 ½ %
56 ¼ % 56 ¼ %

By solving the equation 5z + 8 = 18, the value of z will be:

1 Mark(s)

Your Answer:

5 5
6 6
2 2
4 4

Express the mixed fraction 2$\frac{3}{4}$ as an improper fraction.

1 Mark(s)

Your Answer:

A) $\frac{11}{4}$ A) $\frac{11}{4}$
B) $\frac{4}{11}$ B) $\frac{4}{11}$
C) $\frac{9}{11}$ C) $\frac{9}{11}$
D) $\frac{7}{11}$ (\frac{11}{4}\) D) $\frac{7}{11}$ (\frac{11}{4}\)

An equation involving expression under the radical sign is known as:

1 Mark(s)

Your Answer:

linear equation linear equation
radical equation radical equation
quadratic equation quadratic equation
complex equation complex equation

If two numbers are divisible by 9, their sum is always divisible by

1 Mark(s)

Your Answer:

A) 5 A) 5
B) 7 B) 7
C) 4 C) 4
D) 9 D) 9

According to Distributive Law of Multiplication over Addition, the a x ( b + c ) must be equal to:

1 Mark(s)

Your Answer:

a x c − b x c a x c − b x c
a − b x c − b a − b x c − b
a x b + a x c a x b + a x c
a x b − a x c a x b − a x c

The sum of \$17$ and \$23$ is:

1 Mark(s)

Your Answer:

38 38
39 39
40 40
41 41

In constructing a histogram which is to be taken along X-axis__________?

1 Mark(s)

Your Answer:

Class interval Class interval
Class frequency Class frequency
Class boundaries Class boundaries
Class mark Class mark

Reciprocal of (3 ÷ $\frac{1}{2}$) is

1 Mark(s)

Your Answer:

A) $\frac{2}{3}$ A) $\frac{2}{3}$
B) $\frac{3}{2}$ B) $\frac{3}{2}$
C) $\frac{2}{9}$ C) $\frac{2}{9}$
D) $\frac{9}{2}$ (\frac{2}{9}\) D) $\frac{9}{2}$ (\frac{2}{9}\)

Which one of the following measurement does not divide a set of observations into equal parts ?

1 Mark(s)

Your Answer:

Quartiles Quartiles
Standard Deviations Standard Deviations
Percentiles Percentiles
Deciles Deciles
Median Median

What is $\frac{5}{6} + \frac{1}{6}$?

1 Mark(s)

Your Answer:

1 1
$\frac{5}{6}$ $\frac{5}{6}$
$\frac{7}{6}$ $\frac{7}{6}$
$\frac{2}{3}$ $\frac{2}{3}$

Which of the following is correct when dividing fractions?

1 Mark(s)

Your Answer:

A) Convert the second fraction and multiply
B) Convert fractions to whole numbers first
C) Subtract denominators before dividing
D) Multiply both fractions separately D) Multiply both fractions separately

The Price of an article is cut by 10%. To restore it to the former value, the new price must be increased by_______?

1 Mark(s)

Your Answer:

10 % 10 %
9 1/11 % 9 1/11 %
11 1/9 % 11 1/9 %
11% 11%

Solve the following system of equations x – y + z = 4, x – 2y + 2z = 9 and 2x + y + 3z = 1.

1 Mark(s)

Your Answer:

A) x = -4, y = -3, z = 2 A) x = -4, y = -3, z = 2
B) x = -1, y = -3, z = 2 B) x = -1, y = -3, z = 2
C) x = 2, y = 4, z = 6 C) x = 2, y = 4, z = 6
D) x = 3, y = 6, z = 9 D) x = 3, y = 6, z = 9

If the numerator of a fraction is increased by 140 % and the denominator is increased by 150 % the resultant fraction is 4/15 what is the original fraction?

1 Mark(s)

Your Answer:

3/5 3/5
5/16 5/16
2/9 2/9
None of these None of these

The length and breadth of play ground are 36 m and 21 m respectively. Flag staffs are required to be fixed on all along the boundary at a distance of 3 m part. The number of flag staffs will be___________?

1 Mark(s)

Your Answer:

37 37
38 38
39 39
40 40

An index number is used______________?

1 Mark(s)

Your Answer:

To measure changes in quantity To measure changes in quantity
To measure changes in price To measure changes in price
To measure changes in a variable over time
To measure changes in demand To measure changes in demand

XY = YX is a true or false statement if the order of A matrix and B matrix is the same.

1 Mark(s)

Your Answer:

False False
True True

The number of coordinate axes in a plane is

1 Mark(s)

Your Answer:

A) 1 A) 1
B) 2 B) 2
C) 3 C) 3
D) 4. D) 4.

_________ used the word statistics for the first time during one of his lectures at a German university?

1 Mark(s)

Your Answer:

Fisher Fisher
unavoidable unavoidable
Feet Feet
Achenwall Achenwall

If the base of parallelogram is 19cm and the height is 11cm then the area of parallelogram is:

1 Mark(s)

Your Answer:

105cm² 105cm²
209cm² 209cm²
110² 110²
170cm² 170cm²

Most commonly used index number is___________?

1 Mark(s)

Your Answer:

Quantity index number Quantity index number
Price index number Price index number
Value index number Value index number
None of these None of these

If the arithmetic mean of seventy five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is___________?

1 Mark(s)

Your Answer:

30 30
40 40
70 70
90 90

The true discount on Rs. 1760 due after a certain time at 12% per annum is Rs. 160. The time after which it is due is:

1 Mark(s)

Your Answer:

6 months 6 months
8 months 8 months
9 months 9 months
10 months 10 months

A shopkeeper buys two articles for Rs.1000 each and then sells them, making 20% profit on the first article and 20% loss on second article. Find the net profit or loss percent?

1 Mark(s)

Your Answer:

neither profit nor loss neither profit nor loss
1% 1%
2% 2%
3% 3%

Simplify: $\frac{15}{20}$

1 Mark(s)

Your Answer:

$\frac{2}{3}$ $\frac{2}{3}$
$\frac{3}{4}$ $\frac{3}{4}$
$\frac{4}{5}$ $\frac{4}{5}$
$\frac{5}{6}$ $\frac{5}{6}$

In the proportion 14 : 21 :: 6 : x, the value of x is:

1 Mark(s)

Your Answer:

A) 13 A) 13
B) 4 B) 4
C) 9 C) 9
D) None of these D) None of these

The Indian number 1,00,00,000 is called ……. in the international system.

1 Mark(s)

Your Answer:

A) Ten million A) Ten million
B) One billion B) One billion
C) One million C) One million
D) Hundred million D) Hundred million

Any data collected by the investigator personally from the informants are called __________ data?

1 Mark(s)

Your Answer:

Primary Primary
Unofficial Unofficial
Group data Group data
None of these None of these

Evaluating Your Answers

Statistics Mock Test 13 : Question 1 of 40