question_answer1) If the mean of 6, y, 7, 14 and\[x\]is 8. Then, the value of \[x+y\]is ____.
A) 13 done clear
B) 12 done clear
C) 10 done clear
D) 15 done clear
View Solution play_arrowA) 4 done clear
B) 3 done clear
C) 2 done clear
D) 1 done clear
View Solution play_arrowA) 12 done clear
B) 14 done clear
C) 16 done clear
D) 18 done clear
View Solution play_arrowA) \[10p-3\] done clear
B) 3p done clear
C) \[p-3\] done clear
D) \[10+p\] done clear
View Solution play_arrowA) 25 done clear
B) 21 done clear
C) 14 done clear
D) 9 done clear
View Solution play_arrowA) 3 done clear
B) 4 done clear
C) 5 done clear
D) 2 done clear
View Solution play_arrowA) 10 done clear
B) 72 done clear
C) 58 done clear
D) 90 done clear
View Solution play_arrowA) 18 done clear
B) 18.2 done clear
C) 17.6 done clear
D) 17 done clear
View Solution play_arrowA) 63 done clear
B) 62 done clear
C) 61 done clear
D) 60 done clear
View Solution play_arrowA) \[\left( a+\frac{1}{a} \right)\overline{X}\] done clear
B) \[\left( a+\frac{1}{a} \right)\frac{\overline{X}}{2}\] done clear
C) \[\left( a+\frac{1}{a} \right)\frac{\overline{X}}{n}\] done clear
D) \[\frac{\left( a+\frac{1}{a} \right)\bar{X}}{2n}\] done clear
View Solution play_arrowquestion_answer11) If mean of the following data is 11. Find the value of P.
\[{{x}_{i}}\] | 13 | 5 | 7 | 19 | 11 | 13 |
\[{{x}_{i}}\] | 6 | 8 | P | 11 | 8 | 4 |
A) 11 done clear
B) 15 done clear
C) 17 done clear
D) 13 done clear
View Solution play_arrowA) 15.75 done clear
B) 16.75 done clear
C) 17.75 done clear
D) 18.75 done clear
View Solution play_arrowquestion_answer13) Find the mean of two digit natural numbers which have both digits same.
A) 55 done clear
B) 45 done clear
C) 65 done clear
D) 50 done clear
View Solution play_arrowA) \[(x+a)A\] done clear
B) \[\frac{(x-1)A+n{{x}_{n}}}{n}\] done clear
C) \[\frac{nA+(n+1){{x}_{n}}}{n}\] done clear
D) \[\frac{(n+1)A+{{x}_{n}}}{n}\] done clear
View Solution play_arrowA) Frequency done clear
B) Class interval done clear
C) Range done clear
D) Cumulative frequency done clear
View Solution play_arrowA) ` 16 done clear
B) ` 20 done clear
C) ` 24 done clear
D) ` 28 done clear
View Solution play_arrowA) 57 marks done clear
B) 56 marks done clear
C) 15 marks done clear
D) 54 marks done clear
View Solution play_arrowA) 30, 30 done clear
B) 35, 25 done clear
C) 25, 35 done clear
D) 20, 40 done clear
View Solution play_arrowA) 63.25 done clear
B) 65.15 done clear
C) 64.25 done clear
D) 60.75 done clear
View Solution play_arrowA) 15 years done clear
B) 19 years done clear
C) 16 years done clear
D) Can't say done clear
View Solution play_arrowKEY |
€ Height before addition of fertilizer € Height after addition of fertilizer |
A) 4.5 cm done clear
B) 5 cm done clear
C) 5.5 cm done clear
D) 6 cm done clear
View Solution play_arrowA) Never true done clear
B) Always true done clear
C) True when the numbers are more than 100. done clear
D) True when the numbers are less than or equal to 100. done clear
View Solution play_arrowquestion_answer23) Match the following.
Column I | Column II |
(P) data which is collected for the first time by the statistical investigator or with the help of his workers is called | (1) Secondary data |
(Q) These are the data already collected by a person or a society and these may be in published form is | (2) Variable |
(R) When the data is complied in the same form and order in which it is collected, it is known as | (3) Primary Data |
(S) A quantity which can vary from one individual to another is called | (4) Raw Data |
A)
P | Q | R | S |
3 | 1 | 2 | 4 |
B)
P | Q | R | S |
3 | 1 | 4 | 2 |
C)
P | Q | R | S |
1 | 3 | 2 | 4 |
D)
P | Q | R | S |
1 | 3 | 4 | 2 |
question_answer24) State T for true and 'F' for false.
(i) If the number of observations is even, then the median is mean of \[{{\left( \frac{n}{2} \right)}^{th}}\]and\[{{\left( \frac{n}{2}+1 \right)}^{th}}\]terms. |
(ii) After four vertical lines for a tally marks, if the tally marks occurs for the fifth time, then the fifth line is put vertically with previous four lines. |
(iii) If the range of the data with minimum value 16, is 87, then the maximum value is 71. |
(iv) Mode of the data, 14, 71, 51, 91, 15, 2, 15, 51, 19, 41, 51, 15, 51 is 51. |
(v) Mean of first ten natural numbers is 5.5 |
A)
(i) | (ii) | (iii) | (iv) | (v) |
T | F | T | T | T |
B)
(i) | (ii) | (iii) | (iv) | (v) |
F | F | T | T | T |
C)
(i) | (ii) | (iii) | (iv) | (v) |
T | F | F | T | T |
D)
(i) | (ii) | (iii) | (iv) | (v) |
T | F | T | F | T |
question_answer25) Fill in the blanks.
(i) The P of class interval is called its class mark. |
(ii) The Q can be calculated graphically. |
(iii) The R of all bars in histogram should be equal. |
(iv) Width of the class interval called S of class interval. |
A)
P | Q | R | S |
Lower value | median | width | range |
B)
P | Q | R | S |
Mid-value | mean | length | range |
C)
P | Q | R | S |
Mid-value | median | width | size |
D)
P | Q | R | S |
Upper-value | mode | length | size |
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