Objective type problems for uniform and normal distribution.
1. Consider the continuous arbitrary variable X and which has a uniform distribution over the interval from 20 to 28. The probability that X will take on a value between 21 and 25 is
1) 0.125
2) 0.250
3) 0.500
4) 1.000
2. Z is a standard normal arbitrary variable. The P (1.41< Z < 2.85) equals
1) 0.4978
2) 0.4207
3) 0.9185
4) 0.0771