[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
[6] Let z be a standard normal random variable. Compute the following probabilities. P(–1.23 ≤ z...
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)
Assume z is a standard normal random variable. Compute the following probabilities.a. P(–1.33 ≤ z ≤ 1.67)b. P(1.23 ≤ z ≤ 1.55)c. P(z ≥ 2.32)d. P(z ≥ –2.08) e. P(z ≥ –1.08)
Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures whenever appropriate. (Do this on paper. Your instructor may ask you to turn in this work.) (a) P(0 Z 2.74) (b) P(0 Z 1) (c) P(-2.40 Z 0) (d) P(-2.40 Z +2.40) (e) P(Z 1.63) (f) P(-1.74 Z) (g) P(-1.4 Z 2.00) (h) P(1.63 Z 2.50) (i) P(1.4 Z) (j) P( |Z| 2.50) Let Z be a standard normal random variable and calculate the following...
Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures wherever appropriate. (Round your answers to four decimal places.) (a) P(O SZS2.58) (b) PO Szs 1 (c)P-2.10 Zs o) (d) バー2.10 i 2.10) (e) P(Z 1.32) (f) P(-1.55 s Z) 9) P-1.10 s Z s 2.00) (h) P(1.32S Zs 2.50) O) P1.10 sz) (j) P(İZİS 2.50)
13. Given that z is a standard normal random variable, compute the following probabilities a. P(-1.98 z .49) b. P(.52szs 1.22) c. P(-1.75-z<-1.04)
2. Random variable Z has the standard normal distribution. Find the following probabilities a): P[Z > 2] b) : P[0.67 <z c): P[Z > -1.32] d): P(Z > 1.96] e): P[-1 <Z <2] : P[-2.4 < Z < -1.2] g): P[Z-0.5) 3. Random variable 2 has the standard normal distribution. Find the values from the following probabilities. a): P[Z > 2) - 0.431 b): P[:<] -0.121 c): P[Z > 2] = 0.978 d): P[2] > 2] -0.001 e): P[- <Z...
Let Z be a standard normal random variable and calculate the following probabilities, drawing pictures wherever appropriate. (Round your answers to four decimal places.) (a) PCOS ZS 2.58) .4951 (b) PCOS ZS 2) .4772 (C) P(-2.70 < ZSO) .4965 (d) .993 P(-2.70 S ZS 2.70) V (e) P(Z < 1.21) .8869 (f) P(-1.95 S Z) .0226 (g) P(-1.70 SZS 2.00) .0218
Given that z is a standard normal random variable, compute the following probabilities. (This subject is difficult to me, if there's an easy way to solve these in Excel, please give the excel formula/s I could use. Thank you :) ) P(z ≤ -1.09) P(z ≤ -1.5) P(z ≥ 1.3) P(z ≥ 2.54) P(-0.71 < z ≤ 2.54)
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(-1.95 ≤ z ≤ 0.44) P(0.57 ≤ z ≤ 1.29) P(-1.73 ≤ z ≤ -1.04)
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). P(-1.93 ≤ z ≤ 0.44) P(0.59 ≤ z ≤ 1.27) P(-1.74 ≤ z ≤ -1.05)