Statistics Mock Test 9 - Online MCQ Exam

The Roman numeral for 2367 is

1 Mark(s)

Your Answer:

A) MMCDLXVII A) MMCDLXVII
B) MMCCCXLVII B) MMCCCXLVII
C) MMCCCLXVII C) MMCCCLXVII
D) MMXCCLXVII D) MMXCCLXVII

A man buys a book for $₹80$ and sells it at a loss of \$12.5\%$. Find the selling price.

1 Mark(s)

Your Answer:

₹70 ₹70
₹72 ₹72
₹75 ₹75
₹78 ₹78

Data must be arranged either in ascending or descending order, if some wants to compute____________?

1 Mark(s)

Your Answer:

Mode Mode
Median Median
Harmonic Mean Harmonic Mean
Geometric Mean Geometric Mean
Median Median

A room is 4 meters 37 cm long and 3 meters 23cm broad. It is required to pave the floor with minimum square slabs. Find the number of slabs required for this purpose?

1 Mark(s)

Your Answer:

485 485
431 431
391 391
381 381

The mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient of variation ?

1 Mark(s)

Your Answer:

60.4% 60.4%
48.3% 48.3%
35.7% 35.7%
27.8% 27.8%

Which of the following cannot be the experimental probability of an event?

1 Mark(s)

Your Answer:

A) 0 A) 0
B) $\frac{2}{5}$ B) $\frac{2}{5}$
C) $\frac{5}{2}$ C) $\frac{5}{2}$
D) 1 (\frac{5}{2}\) D) 1 (\frac{5}{2}\)

A man buys an article and sells it at a profit of 20%. If he had bought it at 20% less and sold it for Rs.75 less, he could have gained 25%. What is the cost price?

1 Mark(s)

Your Answer:

Rs.370 Rs.370
Rs.375 Rs.375
Rs.350 Rs.350
Rs.300 Rs.300

For what value of x, matrix $\left[\begin{array}{ll} 6-x & 4 \\ 3-x & 1 \end{array}\right]$ is a singularmatrix?

1 Mark(s)

Your Answer:

A) 1 A) 1
B) 2 B) 2
C) -1 C) -1
D) -2 D) -2

A ribbon of length 5 $\frac{1}{3}$ m is cut into small pieces, each of length $\frac{2}{3}$ m. The number of pieces will be

1 Mark(s)

Your Answer:

A) 5 A) 5
B) 6 B) 6
C) 7 C) 7
D) 8 D) 8

What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?

1 Mark(s)

Your Answer:

196 196
630 630
1260 1260
2520 2520

Find the area of a rhombus whose side is 25 cm and one of the diagonals is 30 cm?

1 Mark(s)

Your Answer:

225 sq.m 225 sq.m
360 sq.m 360 sq.m
600 sq.m 600 sq.m
480 sq.m 480 sq.m

Which of the following shows the maximum rise in temperature?

1 Mark(s)

Your Answer:

A) 0°C to 10°C A) 0°C to 10°C
B) -4°C to 8°C B) -4°C to 8°C
C) -15°C to -8°C C) -15°C to -8°C
D) -7°C to 0°C D) -7°C to 0°C

A property agents gets a commission of 3% by selling an apartment for $250 000. The commission received by agent (in dollars) is:

1 Mark(s)

Your Answer:

$7,350 $7,350
$7,300 $7,300
$7,500 $7,500
$8,200 $8,200

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

The ratio of 2km to 600m should be:

1 Mark(s)

Your Answer:

2 : 7 2 : 7
10 : 7 10 : 7
2 : 3 2 : 3
10 : 3 10 : 3

A rectangular lawn of dimensions 80 m * 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m?

1 Mark(s)

Your Answer:

Rs.3600 Rs.3600
Rs.3700 Rs.3700
Rs.3800 Rs.3800
Rs.3900 Rs.3900

If (Bxy>1)then (Byx)?

1 Mark(s)

Your Answer:

Greater than 1 Greater than 1
Less than 1 Less than 1
Remain same Remain same
No effect No effect

The total marks obtained by a student in Mathematics and Physics is 60 and his score in Chemistry is 20 marks more than that in Physics. Find the average marks scored in Mathematics and Chemistry together.

1 Mark(s)

Your Answer:

40 40
30 30
25 25
Data inadequate Data inadequate

A man sells a horse for Rs.800 and loses something, if he had sold it for Rs.980, his gain would have been double the former loss. Find the cost price of the horse?

1 Mark(s)

Your Answer:

Rs.900 Rs.900
Rs.875 Rs.875
Rs.850 Rs.850
Rs.860 Rs.860

What is $43 \times 8$?

1 Mark(s)

Your Answer:

344 344
336 336
352 352
360 360

The mean and the variance are equal in________________?

1 Mark(s)

Your Answer:

All probability distribution All probability distribution
The hypergeometric distribution The hypergeometric distribution
The binomial distribution The binomial distribution
The Poisson distribution The Poisson distribution

In what ratio should the profit of Rs.8000 be divided if X starts a business with an investment of Rs. 20000, Y invests Rs.7500 for 4 months and Z invests Rs.15000 after 3 months from the start of the business.

1 Mark(s)

Your Answer:

16 : 2 : 3 16 : 2 : 3
8 : 3 : 6 8 : 3 : 6
16 : 2 : 9 16 : 2 : 9
6 : 9 : 1 6 : 9 : 1

P and Q started a business with respective investments of Rs. 4 lakhs and Rs. 10 lakhs. As P runs the business, his salary is Rs. 5000 per month. If they earned a profit of Rs. 2 lakhs at the end of the year, then find the ratio of their earnings?

1 Mark(s)

Your Answer:

2 : 5 2 : 5
5 : 2 5 : 2
3 : 5 3 : 5
1 : 1 1 : 1
None of these None of these

A sampling distribution is the probability distribution for which one of the following___________?

1 Mark(s)

Your Answer:

A sample A sample
A sample statistic A sample statistic
A population A population
A population parameter A population parameter

Three numbers are in the ratio of 3 : 4 : 6 and their product is 1944. The largest of these numbers is :___________?

1 Mark(s)

Your Answer:

6 6
12 12
18 18
None of these None of these

p is six times as large as q. The percent that q is less than p is:________?

1 Mark(s)

Your Answer:

83 1/3 83 1/3
16 2/3 16 2/3
90 90
60 60

P95 means _____?

1 Mark(s)

Your Answer:

The central 95% area The central 95% area
The point above above which95% area lies
The point above below which 95% area lies
Both (a) and (b) but not (c) Both (a) and (b) but not (c)

A sum of money at compound interest amounts to $₹6655$ in \$3$ years and $₹7986$ in \$4$ years. Find the rate of interest.

1 Mark(s)

Your Answer:

0.15 0.15
0.18 0.18
0.22 0.22
0.2 0.2

A and B began business with Rs.3000 and Rs.4000 after 8 months, A withdraws Rs.1000 and B advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of A.

1 Mark(s)

Your Answer:

Rs.240 Rs.240
Rs.350 Rs.350
Rs.340 Rs.340
Rs.390 Rs.390

By solving the equation 1 2⁄3a + 6 = 4 1⁄2a - 10, the value of 'a' will be:

1 Mark(s)

Your Answer:

14 14
12 12
16 16
18 18

Evaluating Your Answers

Statistics Mock Test 9 : Question 1 of 30