Recent questions in Class 7

Ismail is part of the school cricket team, and this year he has scored an average of 41 runs. He has played 7 innings so far, and his scores in 6 of them are 42, 36, 46, 32, 31, 44 What was his score in the last one?

asked Oct 14, 2015 by pady_1

1 answer

Hights (in cm) of 25 children are given below: 168, 165, 163, 160, 163, 161, 162, 164, 163, 162, 164, 163, 160, 163, 161, 165, 163, 162, 163, 164, 163, 160, 165, 163, 162 What is the mode of their heights?

asked Oct 14, 2015 by pady_1

1 answer

when a coin is thrown, it has _____ possible outcomes.

asked Oct 14, 2015 by pady_1

0 answers

The runs scored in a cricket match by 11 players is as follows: 6, 15, 120, 50, 100, 80, 10, 15, 8, 10, 15 Find the median of this data.

asked Oct 14, 2015 by pady_1

1 answer

If an event will occur with a probability of \large\frac{3}{34} , then we can say that it is:

asked Oct 14, 2015 by pady_1

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Tina throws a die. What is the probability that she rolls a number more than 2?

asked Oct 14, 2015 by pady_1

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If an event will occur with a probability of \large\frac{75}{84}, then we can say that it is:

asked Oct 14, 2015 by pady_1

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Following are the margins of victory in the football matches of a league. 1, 3, 2, 5, 1, 4, 6, 2, 5, 2, 2, 2, 4, 1, 2, 3, 1, 1, 2, 3, 2, 6, 4, 3, 2, 1, 1, 4, 2, 1, 5, 3, 3, 2, 3, 2, 4, 2, 1, 2. Find the mode of this data.

asked Oct 14, 2015 by pady_1

1 answer

The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 40 What is the mean age of these teachers?

asked Oct 14, 2015 by pady_1

1 answer

The _____ of a set of observations is the observation that occurs most often.

asked Oct 14, 2015 by pady_1

1 answer

When a die is thrown, it has _______ possible outcomes.

asked Oct 14, 2015 by pady_1

1 answer

The difference between the highest and the lowest observation is the _________ of the observation.

asked Oct 14, 2015 by pady_1

0 answers

The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141. What is the range of the data?

asked Oct 14, 2015 by pady_1

1 answer

The weights (in kg.) of 15 students of a class are: 38, 42, 35, 37, 45, 50, 32, 43, 43, 40, 36, 38, 43, 38, 47. Find the median of this data.

asked Oct 14, 2015 by pady_1

0 answers

The heights of 10 girls were measured in cm and the results are as follows: 135, 150, 139, 128, 151, 132, 146, 149, 143, 141. What is the height of the tallest girl?

asked Oct 14, 2015 by pady_1

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Balvinder tosses a die and tosses a coin. What is the probability that he gets a 6 on the die and a Tail from the coin toss?

asked Oct 14, 2015 by pady_1

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Tina got an average score of 84.75 in 4 tests. She got 85 as the average of the highest 3 scores, and his lowest two scores are the same numbers. What is the average of her highest two scores?

asked Oct 14, 2015 by pady_1

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Archana tosses a die and tosses a coin. What is the probability that she gets a 1 on the die and a Head from the coin toss?

asked Oct 14, 2015 by pady_1

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Find the mean of first 12 multipliers of 8.

asked Oct 14, 2015 by pady_1

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From a deck of cards, Sulekha withdraws a card at random. What is the probability that the card is facecard (one of king, queen, jack )?

asked Oct 14, 2015 by pady_1

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Find the mode of the following data: 12, 14, 12, 16, 15, 13, 14, 18, 19, 12, 14, 15, 16, 15, 16, 16, 15, 17, 13, 16, 16, 15, 15, 13, 15, 17, 15, 14, 15, 13, 15, 14

asked Oct 14, 2015 by pady_1

1 answer

Find the mean of the first five whole numbers.

asked Oct 14, 2015 by pady_1

0 answers

_________ help to compare two collections of data at a glance.

asked Oct 14, 2015 by pady_1

1 answer

he data 6, 4, 3, 8, 9, 12, 13, 9 has mean _________.

asked Oct 14, 2015 by pady_1

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Find the median of the data: 13, 16, 12, 14, 19, 12, 14, 13, 14.

asked Oct 14, 2015 by pady_1

1 answer

There are 6 marbles in a box with numbers from 1 to 6 marked on each of them. What is the probability of drawing a marble with number 2?

asked Oct 14, 2015 by pady_1

1 answer

Ankur is getting dressed to go to his office. He has 7 pair of blue socks and 11 pairs of white socks. Without looking he reaches into the cupboard and picks a blue sock. What is the probability that the next sock he pulls out will be of the same color?

asked Oct 14, 2015 by pady_1

0 answers

A teacher measures the heights of 13 students in her class as follows (in centimetres) 146 , 115 , 134 , 118 , 126 , 158 , 151 , 134 , 110 , 147 , 144 , 154 , 160,What is the median of their heights?

asked Oct 14, 2015 by pady_1

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While doing the science experiment in the physics lab, Kareem had to take 4 measurements of the temperature and write the average of those as an answer. If the measurements of the temperature is -3, -3, -2, -4, what is the final answer of his experiment ?

asked Oct 14, 2015 by pady_1

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A coin is tossed 100 times with the following frequencies :Head : 49, Tail: 51, When a coin is tossed at random, what is the probability of getting head?

asked Oct 14, 2015 by pady_1

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A dice is thrown at random. Find the probability of getting an even number.

asked Oct 14, 2015 by pady_1

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A bag contains 5 red balls and 3 white balls. What is the probability that one ball drawn from the bag is white?

asked Oct 14, 2015 by pady_1

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If 75 C - 225 A = 702, and 300 A + 75 B = 1098, then what is the average of A, B and C?

asked Oct 14, 2015 by pady_1

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Find the median of the following set 19 , 22 , 21 , 10 , 14 , 15 , 15 , 22

asked Oct 14, 2015 by pady_1

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The average of any four consecutive odd integers is always

asked Oct 14, 2015 by pady_1

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In an office, the age of the employees was as follows 30 , 26 , 27 , 37 , 14 , 50 , 45 , 53 , 48 , 51 , 38 , 25 What is the average of their ages?

asked Oct 14, 2015 by pady_1

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If the probability of winning a game is 0.8, what is the probability of losing it ?

asked Oct 14, 2015 by pady_1

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A dice is thrown once. What is the probability of getting 2 ?

asked Oct 14, 2015 by pady_1

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What is the new median, when 36 is added to the data : 32, 34,36,38,40,42,44?

asked Oct 14, 2015 by pady_1

1 answer

What is the value of x if the median of given data is 18 : 15, 16, 17, x + 2, 19, 20, 21?

asked Oct 14, 2015 by pady_1

1 answer

If 23 is taken out from the given data then what is the new median?20, 21,22, 23, 24, 25, 26,27

asked Oct 14, 2015 by pady_1

1 answer

Find the value of x if the mode of the following data is 7 : 5, 4, 7, 4, 7, x, 7, 4, 3,5

asked Oct 14, 2015 by pady_1

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The ages in years of 9 teachers in a school are : 23, 34, 37, 39, 41,43,45,47. find the median

asked Oct 14, 2015 by pady_1

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Find the median of first 8 even natural numbers

asked Oct 14, 2015 by pady_1

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Find the median of first 7 odd natural numbers.

asked Oct 14, 2015 by pady_1

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Find the median of the data : 41, 43, 46, 48, 49, 52, 53, 55,56

asked Oct 14, 2015 by pady_1

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Find the median : 6, 8, 9, 15, 21, 25, 28, 29

asked Oct 14, 2015 by pady_1

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The marks obtained by 6 students of a class 7th in a test are given below : 12, 15, 23,23, 19, 21. Find the median.

asked Oct 14, 2015 by pady_1

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Ria's age is twice that of Balvinder, Balvinder's age is twice that of George and George's age is twice that of Radha. If the average of the ages of Ria, Balvinder, George and Radha is 22.5 years, then what is the present age of Ria.

asked Oct 14, 2015 by pady_1

0 answers

Pradip throws a die. What is the probability that he rolls a number less than 6?

asked Oct 14, 2015 by pady_1

0 answers

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