Frequency Distribution

Q.

What is the Central Limit Theorem? Try to state it in your own words?

Q.

In a dice game, Arjun got 3, 4, 6, 3, 2, 5, 3, 1, 6, 3, 3, 2, 4, 4 and 1 in his first 15 attempts. Which number has the maximum frequency? Show it with the help of a tally chart. [3 MARKS]

Q.

What is the value of a, b, c and d?

1. a= 22 ;b= 28 ;c= 11 ;d= 13

2. a= 22 ;b= 28 ;c= 21 ;d= 13

3. a= 28 ;b= 22 ;c= 21 ;d= 13

4. a= 28 ;b= 22 ;c= 21 ;d= 13

Q.

Srivani has invited some friends over, for a pizza. She asked her friends what toppings they would like on their pizza.

What can Srivani most likely conclude from the table?

1. Cheese is preferred over pepperoni pizza.
2. Sausage is the group's third-favourite type of pizza.
3. Mushroom pizza should not be ordered.
4. Srivani only eats onion pizza

Q.

The Heights ( in cm ) of 10 girls of a class are 140 , 142, 135 , 133 , 137 , 150 , 148 and 138, 141, 139 respectively. Find the mean height of these girls

1. 140

2. 141

3. 141.3

4. 140.3 cm

Q.

The students in Mr. Sharmas class had a Maths test and scored out of marks$10$ which are listed below:

$3762591087184356787653698759678$

i) Organise the data using tally marks.

ii) How many students scored less than or equal to$5$?

iii) How many students scored more than $8$?

Q.

Varun is asked to collect data on number of hours students play counter strike in a class of 14 students. His findings are recorded in the manner shown below:

2, 2, 3, 4, 3, 3, 2, 2, 0, 6, 5, 5, 0, 1 .Draw the frequency table .

Q. The range value gives us an idea of the of the observations.

1. spread
2. central tendency
3. average

Q.

The bar chart for the data given in the frequency table is shown below. For which year the data in graph is incorrectly represented?

1. 1995

2. 1996

3. 1997

4. 1998

Q.

Tom was watching cartoon network on channel no. 32. After watching for a while, he changed the channel to channel no. 56.

How many channels has he skipped?

1. 24
2. 25
3. 26
4. 23

Q. The value of the range for the data set {10, 20, 0, 40, 90} is .

1. 90
2. \N
3. 10

Q.

What is the value of a, b, c and d?

1. a= 22 ;b= 28 ;c= 11 ;d= 13

2. a= 22 ;b= 28 ;c= 21 ;d= 13

3. a= 28 ;b= 22 ;c= 21 ;d= 13

4. a= 28 ;b= 22 ;c= 21 ;d= 13

Q. Generally, tally marks are recorded in groups of _____________.

1. four

2. six

3. ten

4. five

Q.

Srivani has invited some friends over, for a pizza. She asked her friends what toppings they would like on their pizza.

What can Srivani most likely conclude from the table?

Q.

In a class, the teacher asks the students to name a few scientists. Following were the names that came up - Einstein, Newton, Einstein, Faraday, Tesla, Hawking, Einstein, Tesla, Tesla, Faraday, Einstein. Who is the most famous scientist?

1. Einstein

2. Hawking

3. Newton

4. Tesla

Q.

The table shows the number of children in 35 families. How many families have more than 3 children?

1. 10

2. 14

3. 21

4. 31

Q. The choices of the fruits of 42 students in a class are as follows;

A, O, B, M, A, G, B, G, A, G
B, M, A, G, M, A, B, G, M, B
A, O, M, O, G, B, O, M, G, A
A, B, M, O, M, G, B, A, M, O, M, O

Where A, B, G, M and O stand for the fruits Apple, Banana, Grapes, Mango and Orange, respectively.
Which two fruits are liked by an equal number of students?

1. A and M
2. M and B
3. B and O
4. B and G

Q. Multiply 56 and 74 by cross multiplication and find the difference between A and B?

1. 33
2. 37
3. 41
4. 39

Q. Simplify:

(1) 4 × [10 + (–12)]

Q. Steve conducts a survey of 15 villages of a locality and finds out the number of teachers in each village. The observations are as following:
3, 3, 3, 2, 2, 1, 2, 3, 4, 4, 4, 4, 4, 1, 1.
Which one of the following represents the correct frequency table?

1. 
2. 
3. 
4. 

Q.

Srivani has invited some friends over, for a pizza. She asked her friends what toppings they would like on their pizza.

What can Srivani most likely conclude from the table?

1. Cheese is preferred over pepperoni pizza.

2. Sausage is the group's second-favourite type of pizza.

3. Mushroom pizza should not be ordered.

4. Srivani only eats onion pizza

Q.

Steve conducts a survey in 15 villages of a locality and finds out the number of teachers in each village. The observations are as follows:
3, 3, 3, 2, 2, 1, 2, 3, 4, 4, 4, 4, 4, 1, 1. Which is the correct frequency table?

1. 

2. 

3. 

4. 

Q.

Steve conducts a survey in 15 villages of a locality and finds out the number of teachers in each village. The observations are as follows:
3, 3, 3, 2, 2, 1, 2, 3, 4, 4, 4, 4, 4, 1, 1. Which is the correct frequency table?

1. 

2. 

3. 

4.