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Ovom de tots hich bei Directions-Q, 1 to 5) What should come in place of question Dark (1) in the following question ? 1. 10 11 15 24 40 ? (A) 90 (B) 87 (Q 114 (D) 95 (E) 65 2 25 35 49 67 89 ? (24 (B) 81 (A) 57 (C) 63% (E) 625 What is the to teachers who English and Bic (A) 1226 (C) 1176 (E) 1206 tou, ne

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Q1

The marks obtained by 10 students in a class are as follows, what is the probability that the average mark obtained by a student in the class is less than 70?(in decimals)

$\begin{matrix} S t u d e n t & E n g l i s h & H i n d i & M a t h e m a t i c s & S c i e n c e 1 & 87 & 78 & 90 & 89 2 & 90 & 68 & 76 & 78 3 & 79 & 68 & 59 & 61 4 & 71 & 67 & 79 & 57 5 & 69 & 91 & 86 & 76 6 & 87 & 85 & 67 & 60 7 & 78 & 90 & 89 & 93 8 & 92 & 76 & 88 & 90 9 & 77 & 81 & 85 & 86 10 & 86 & 75 & 93 & 89 \end{matrix}$

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Q2

Question 4
Draw a histogram to represent the following grouped frequency distribution

$\begin{matrix} Age(in years) & Number of teachers 20 - 24 & 10 25 - 29 & 28 30 - 34 & 32 35 - 39 & 48 40 - 44 & 50 45 - 49 & 35 50 - 54 & 12 \end{matrix}$

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Q3

What is the mean of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 and 100??

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Q4

The marks obtained by 10 students in a class are as follows, what is the probability that the average mark obtained by a student in the class is less than 70?(in decimals)

$\begin{matrix} Student & English & Hindi & Mathematics & Science 1 & 87 & 78 & 90 & 89 2 & 90 & 68 & 76 & 78 3 & 79 & 68 & 59 & 61 4 & 71 & 67 & 79 & 57 5 & 69 & 91 & 86 & 76 6 & 87 & 85 & 67 & 60 7 & 78 & 90 & 89 & 93 8 & 92 & 76 & 88 & 90 9 & 77 & 81 & 85 & 86 10 & 86 & 75 & 93 & 89 \end{matrix}$

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Q5

If

a_{1}, a_{2}, a_{3}

,.are in

A . P .

such that

a_{1} + a_{5} + a_{10} + a_{15} + a_{20} + a_{24} = 225

, then

a_{1} + a_{2} + a_{3} + . . . + a_{23} + a_{24}

is equal to

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