Question 11 4 pts Find an approximate value of the standard normal random variable z, called...
Find an approximate value of the standard normal random variable z, called zor such that P(Z >20) = 0.70. 0 -0.47 -0.52 0 -0.99 -0.81
(1 point) Find the value of the standard normal random variable z, called Zo such that: (a) P(Z <zo) = 0.8319 20 (b) PC-Zo <z<zo) = 0.5508 20 = (c) P(-20 <2<zo) = 0.748 zo = (d) P(z > Zo) = 0.2823 20 = (e) P(-20 <z<0) = 0.0283 Zo = (1) P(-1.5 <2<zo) = 0.7108 zo Note: You can earn partial credit on this problem.
(1 point) Find the following probabilities for the standard normal random variable z. (a) P(-0.81 <<0.42) (b) P(-1.14 <z < 0.5) (c) P(Z < 0.69) a (d) P(Z > -0.6)
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
Find a value of a standard normal random variable Z (call it z0) such that (a) P(Z ?20) .30 (b) P(Z> z)16 (c) P(-20< Z<20).90
QUESTION 10 4 If Z is a standard normal random variable, then P(-1.25<= Z <=-0.75) is QUESTION 11 4F It is given that x, the unsupported stem diameter of a sunflower plant, is normally distributed with population mean mu=35 and population standard deviation sigma=3. What is the probability that a sunflower plant will have a basal diameter of more than 40 mm? 4 pc QUESTION 12 A random variable x is normally distributed with u = 100 and o-20, What...
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
1. (5 points) Suppose Z is a random variable that follows the standard normal distribution. a) Find P(Z > 0.45). b) Find P(0.7 SZ 1.6). c) Find 20.09. d) Find the Z-score for having area 0.18 to its left under the standard normal curve. e) Find the value of z such that P(-2SZS2) -0.5.
Question 2 (1 point) Let z is standard normal variable. Find P(z> - 2.67) O 0.9962 0 0.0937 0.937 0.0038 0.063 Previous Page Next Page
Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine the value of c. P(1.22<Z<c)=0.0703 Carry your intermediate computations to at least four decimal places. Round your answer to two decimal places. 0 X $ ?