Rajasthan Board RBSE Class 11 Maths Chapter 14 Probability Miscellaneous Exercise Question 1. In throwing a coin n times, n(S) is – (A) 2n (B) 2n (C) n2 (D) n/2 Solution: Thus (B) is correct. Question 2. In throwing two dice and sample space of getting sum 3 is – (A) (1, 2) (B) {(2,…
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Rajasthan Board RBSE Class 11 Maths Chapter 14 Probability Ex 14.3 Question 1. Probability of event A is 2/11, find the probability of event ‘A-not’. Solution: Question 2. There are 4 male and 6 female members in village paneLIf one member for a committee is selected randomly then what is the probability to select a…
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Rajasthan Board RBSE Class 11 Maths Chapter 14 Probability Ex 14.2 Question 1. A dice is thrown. Find the probability that number appear on dice is greater than 4. Solution: Total result obtained in throwing a dice. S = {1,2, 3, 4, 5, 6} then n(S) = 6 and n{E) = Total result to get…
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Rajasthan Board RBSE Class 11 Maths Chapter 14 Probability Ex 14.1 Question 1. From a cartoon of bulbs, 3 bulbs are drawn randomly. Test each bulb and classified into damage (D) and not damage (N). Find the sample space of this test. Solution: After drawing first bulb two results D of will be After drawning…
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Rajasthan Board RBSE Class 11 Maths Chapter 13 Measures of Dispersion Miscellaneous Exercise Question 1. Marks obtain by five students in math are 20, 25, 15, 35 and 30 its range will be : (A) 15 (B) 20 (C) 25 (D) 30 Solution: Range = Maximum value – minimum value = 35 – 15 =…
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Rajasthan Board RBSE Class 11 Maths Chapter 13 Measures of Dispersion Ex 13.3 Find mean and variance for the data of Q. 1. and Q.2 Question 1. xi 6 10 14 18 24 28 30 fi 2 4 7 12 8 4 3 Solution: Question 2. xi 82 83 87 88 92 94 99 fi…
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Rajasthan Board RBSE Class 11 Maths Chapter 13 Measures of Dispersion Ex 13.2 Find the mean deviation from mean for the data given in Q1 and Q2. Question 1. 4, 7, 8, 9, 10, 12, 13,17 Solution: Question 2. 28, 60, 38,30, 32, 45, 53, 36,44, 34 Solution: Find the mean deviation from median for…
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Rajasthan Board RBSE Class 11 Maths Chapter 13 Measures of Dispersion Ex 13.1 Question 1. Write the formula of quartile deviation. Solution: Coefficient of quartile deviation Here, Q3 = upper quartile, Q1 = Lower quartile. Question 2. For any variable series Q1 = 61 and Q3 = 121. Find the quartile deviation. Solution: Quartile deviation (Q.D.) =…
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Rajasthan Board RBSE Class 11 Maths Chapter 12 Conic Section Miscellaneous Exercise Question 1. Radius of a circle 9×2 +y2 + 8x = 4(x2 – y2) is : (A) 1 (B) 2 (C) 4 / 5 (D) 5 / 4 Solution: Equation of circle, 9×2 + y2 + 8x = 4(x2 – y2) ⇒ 9×2…
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Rajasthan Board RBSE Class 11 Maths Chapter 12 Conic Section Ex 12.7 Question 1. Find the length of axis, focus eccentricity latus rectum and equation of directrix of the hyperbola 9×2 – 16y2 = 144. Solution: Given equation, 9×2 – 16y2 = 144. Question 2. Find the equations of hyperbola whose : (i) Focus is…
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