Solution,
Using standard normal table,
P( - 2.22 < Z < 0.25)
= P( Z < 0.25) - P( Z < - 2.22)
= 0.5987 - 0.0132
= 0.5855
ULULUI Let Z be a standard normal random variable. What is P(-2.22 <Z<0.25)? 0.2212 0.3488 0.5855...
4. Let Z ~ N(0,1) be a standard normal variable. Calculate the probability (a) P(1 <Z < 2). (b) P(-0.25 < < < 0.8). (c) P(Z = 0). (d) P(Z > -1).
Let the random variable Z follow a standard normal distribution. Find P(-2.35 < Z< -0.65). Your Answer:
please explain these throughly!!! Thank you so much! Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine the value of c. P(0.86 <2<c)=0.1737 Carry your intermediate computations to at least four decimal places. Round your answer to two decimal places. Tx 5 ? Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 8 beats/minute. What proportion of healthy adults have...
Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine the value of c. P(-csz<c)=0.9426 Carry your intermediate computations to at least four decimal places. Round your answer to two decimal places. x 3 ? Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine the value of c. P(0.55 <<c) -0.2624 Carry your intermediate computations to at least four decimal places. Round your answer to...
1. Given that z is a standard normal random variable, compute the following probabilities. a. P(Z < 1.38) b. P(z 2 1.32) c. P(-1.23 Sz5 1.23)
Suppose Z is a standard normal random variable. (See problem.) If P(-z<z<z) 0.796, find Question 1 Find P(-2.46 <Z<-0.98) Question 2
IS Find the following probability for the standard normal random variable z. a. P(z<-1.02) b. P(z <2.03) c. P(0.68 szs2.03) d. P(-2.66szs1.56) a. P(z -1.02)(Round to four decimal places as needed.) b. Pize 2.03)=[] (Round to four decimal places as needed.) ook c. P(0.68 szs2.03) (Round to four decimal places as needed.) d.P(-2.66 s zs 1.56) = [□ (Round to four decimal places as needed.)
6. (5 marks) Suppose Y is a Normal random variable. If P(Y <1)=0.25 and P(Y > 0)=0.9. what are y, and o?
QUESTION 7 Suppose Z is a standard normal random variable. Find the value of Za/2 such that PK-zo/2 < Z< Zo/2)-0.95
Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine the value of c. P(Z<c) = 0.8790 Carry your intermediate computations to at least four decimal places. Round your answer to two decimal places. . Х 5 ?