Please solve 4 and 7 th questions.

Statistics

Introduction to Probability, Statistics and Data Handling TutorialS Gaussian and Binomial distributions 4. LetX be a standard normal random variable- Calculate: P(1 :7. X s: 1), P(2 :7. X s: 2), P{3 a. X z") = 0.0250. The value 2* is a cuts 013' a right tail of area 0.0250 in the standard normal distribution, c) Find the values 2,: such that: PIIzL -:'. Z z: 2.1) = 0.68 and P(zu