untitled

What is the arithmatic mean of 1, 2,________,9,10?

• 5.5

• 6

• 7.5

• 10

In a data , 10 numbers are arranged in increasing order . If the 7th entry is increased by 4 , by how much the median increased.

• 0

• 4

• 6

• 5

Which of the following is true about mean?

• It occurs most frequently.

• It divides observations into two equal parts.

• It is representative of the whole group.

• It is sum of observation.

What is the median of the data 46, 64, 87, 41, 58, 77, 35, 90, 55, 33, 92?

• 87

• 77

• 58

• 60.2

Which of the following is the probability of sure event?

• zero

• 1

• 2

• none

A die is thrown. What is the probability of getting 6?

• 0

• 1/6

• 1/2

• 1

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

• Mode

• range

• Median

A coin is flipped to decide which team starts the game.What is the probability that your team will start?

• 1/2

• 1/3

• 1/4

Find the range of the data.

128, 139, 148, 132, 152, 154, 140, 143, 146, 149

• 9

• 26

• 5

• 24

Which of the following is the mean of first five natural numbers?

• 2

• 3

• 4

• 5