 # Test: IF U BELIEVE IN YOURSELF, THEN TRY TRY & TRY TILL U SUCCEED.....

True False

## The mean of a data set is equal to 10 and its standard deviation is equal to 1. If we add 5 to each data value, then the mean and standard deviation become

mean = 15 , standard deviation = 6 mean = 10 , standard deviation = 6 mean = 15 , standard deviation = 1 mean = 10 , standard deviation = 1

True False

394 250 400 106

## Calculate the area of a triangle whose sides are 13 cm, 5 cm and 12 cm.

32 cm sq. 900 cm sq. 30 cm sq. 15 cm sq.

## The probability that an electronic device produced by a company does not function properly is equal to 0.1. If 10 devices are bought, then the probability, to the nearest thousandth, that 7 devices function properly is

0.057 0.478 0.001 0

## A school committee consists of 2 teachers and 4 students. The number of different committees that can be formed from 5 teachers and 10 students is

1000 1500 2100 8000

## The three solutions of the equation f(x) = 0 are -2, 0, and 3. Therefore, the three solutions of the equation f(x - 2) = 0 are

- 4, -2, and 1 -2, 0 and 3 4, 2, and 5 0, 2 and 5

## The period of 2 sin x cos x is

4 pi sq. 2 pi 4 pi pi

-4 4 1/4 10

11 48 -12 22