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
The period of 2 sin x cos x is
2 pi
4 pi
pi
pi/2
When a metallic ball bearing is placed inside a cylindrical container, of radius 2 cm, the height of the water, inside the container, increases by 0.6 cm. The radius, to the nearest tenth of a centimeter, of the ball bearing is
1 cm
1.2 cm
2 cm
0.6 cm
The period of | sin (3x) | is
2 pi/3
4 pi/3
3 pi
The exam scores of all 500 students were recorded and it was determined that these scores were normally distributed. If Jane's score is 0.8 standard deviation above the mean, then how many, to the nearest unit, students scored above Jane?
394
250
400
106
Five different books (A, B, C, D and E) are to be arranged on a shelf. Books C and D are to be arranged first and second starting from the right of the shelf. The number of different orders in which books A, B and E may be arranged is
5!
3!
2! * 3!
2!
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
10
15
2100
2104
Where are nephrons found in our body?
Brain
Kidney
Intestine
Pancreas
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
-2, 0 and 3
4, 2, and 5
0, 2 and 5