Given that z is a standard normal random variable, find z for each situation (to 2 decimals). Enter negative values as negative numbers. a. The area to the left of z is 0.2119.

b. The area between -z and z is 0.9030.

c. The area between -z and 2 is 0.2052.

d. The area to the left of 2 is 0.9948

e. The area to the right of z is 0.6915

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step-by-step explanation:

vertical=18cm horizontal=18cm hypotenuse=25.5

step-by-step explanation:

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.