For a standardized normal distribution, calculate the probabilities below.
a. P(z<1.2)
b. P(z≥0.75)
c. P(−1.23<z<1.45)
a) P( z< 1.2) = 0.885
{ from normal probability table}
b) P(z>=0.75) = 1- P(z<0.75)
= 1- 0.773
= 0.227
c) P(-1.23<z<1.45)= P(z<1.45) - P(z<-1.23)
= 0.926 - 0.109
= 0.817
For a standardized normal distribution, calculate the probabilities below. a. P(z<1.2) b. P(z≥0.75) c. P(−1.23<z<1.45)
Compute the following probabilities assuming a standard normal distribution. a) P(Z < 1.4) b) P(Z < 1.12) c) P(-0.89 <z< 1.35) d) P(O<z<2.42)
For the standard normal distribution, determine the following probabilities: (a) Pr(Z ≥ 1.5) (b) Pr(1.2 ≤ Z ≤ 1.75)
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For a standard normal distribution, determine the following probabilities. a) P(z>1.41) b) P(z>−0.31) c) P(−1.81≤z≤−0.69) d) P(−1.80≤z≤0.20)
For a standard normal probability distribution, find the following a) P(z<1.2) b) P(z<−0.45) c)P(−0.4<z<1.8)
[6] Let z be a standard normal random variable. Compute the following probabilities. P(–1.23 ≤ z ≤ 2.58) P(z ≥ 1.32) P(z ≥ –1.63) P(z ≤ –1.38) P(–1.63 ≤ z ≤ –1.38) P(z = 2.56) I don't understand how z scores compute ?? I have looked at Z score tables in the book and I still don't understand
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(1 point) Compute the following probabilities for the standard normal distribution Z. A P(0 < Z < 2.4) B. P(-1.85 <Z < 0.55) = c. P(Z > -1.95)
Standard Normal distribution.
With regards to a standard normal distribution complete the following: (a) Find P(Z > 0), the proportion of the standard normal distribution above the z-score of 0. (b) Find P(Z <-0.75), the proportion of the standard normal distribution below the Z-score of -0.75 (c) Find P(-1.15<z <2.04). (d) Find P(Z > -1.25). (e) Find the Z-score corresponding to Pso, the 90th percentile value.
Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1), determine the following probabilities. a. P(Zgreater than1.02) b. P(Zless thannegative 0.23) c. P(minus1.96less thanZless thannegative 0.23) d. What is the value of Z if only 9.68% of all possible Z-values are larger?