Find the following probabilities for a standard normal variable, Z 1) P(Z<-1.27) 2) P(-2.03<Z<3.49) 3) P(Z>1.74)...
Find the following probabilities for a standard normal variable,
Z
1) P(Z<-1.27) 2) P(-2.03<Z<3.49) 3) P(Z>1.74)
4)P(Z<0.17)
B. Find z if we know that the area to the left of z (under the normal curve) is 0.9265.
Homework Answers
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Find the following probabilities for a standard normal variable,
Z
1) P(Z<-1.27) 2) P(-2.03<Z<3.49) 3) P(Z>1.74)...
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals)....
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)
Determine the area under the standard normal curve that lies to the left of (a) Z=−1.27,...
Determine the area under the standard normal curve that lies to the left of (a) Z=−1.27, (b) Z=0.66, (c) Z=0.18, and (d) Z=0.17.
2. Given that z is a standard normal random variable, computethe following probabilities. P(-1 ≤...
2. Given that z is a standard normal random variable, compute the following probabilities. P(-1 ≤ z ≤ 0) (Round to four decimal places) Answer P(-1.5 ≤ z ≤ 0) (Round to four decimal places) Answer P(-2 < z < 0) (Round to four decimal places) Answer P(-2.5 < z < 0) (Round to four decimal places) Answer P(-3 ≤ z ≤ 0) (Round to four decimal places) 3. Given that z is a standard normal random variable, compute the...
2. Random variable Z has the standard normal distribution. Find the following probabilities a): P[Z >...
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...
A) 0.7995 11. If Z is a standard normal variable find the probabilities of a) P(Z...
A) 0.7995 11. If Z is a standard normal variable find the probabilities of a) P(Z <-0.35)- @w B) 0.3982 C) 1.2008 D) p.4013 (2 points) b) P(0.25s Z<1.55) (3 points) c) P(Z > 1.55) (2 points) 12. Assume that X has a normal distribution with mean deviation .5. Find the following probabilities: 15 and the standard a) P(X < 13.50)- 3 points). b) P (13.25 <X < 16.50)- (5 points). B) 0 2706 C0 5412 D) 1.0824 A mountuin...
(1 point) Find the following probabilities for the standard normal random variable z. (a) P(-0.81 <<0.42)...
(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)
1. On the standard normal curve, find the following values of z. a. the value of...
1. On the standard normal curve, find the following values of z. a. the value of z representing the 75th percentile or upper quartile b. the value of z representing the 15th percentile C, the value of z that cuts of the upper 25% of the area under the curve 2. Find the area under the standard normal curve to the left of 1.2 3. Find the area under the standard normal curve to the right of 2.48. 4. Find...
Find the following probabilities based on the standard normal variable Z (Round your answers to 4...
Find the following probabilities based on the standard normal variable Z (Round your answers to 4 decimal places.) a. P(Z> 1.04) b. P(Zs -1.74) c. P(O s Z s 1.81) d. P(-0.81 s Zs 2.66)
1. Given that z is a standard normal random variable, compute the following probabilities. a. P(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)
Please show the work ! Find the value of Z for the standard normal distribution such...
Please show the work !
Find the value of Z for the standard normal distribution such that the area a) in the left tail is 0.1000 b) between 0 and Z is 0.2291 and Z is positive c) in the right tail is 0.0500 d) between 0 and Z is 0.3571 and Z is negative 1) 2) Find the following binomial probabilities using the normal approximation a) n- 70, p-0.30, P(x-18) b) n-200, p 0.70, P(133 x S 145) c)...
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...
A) 0.7995 11. If Z is a standard normal variable find the probabilities of a) P(Z <-0.35)- @w B) 0.3982 C) 1.2008 D) p.4013 (2 points) b) P(0.25s Z<1.55) (3 points) c) P(Z > 1.55) (2 points) 12. Assume that X has a normal distribution with mean deviation .5. Find the following probabilities: 15 and the standard a) P(X < 13.50)- 3 points). b) P (13.25 <X < 16.50)- (5 points). B) 0 2706 C0 5412 D) 1.0824 A mountuin...
(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)
1. On the standard normal curve, find the following values of z. a. the value of z representing the 75th percentile or upper quartile b. the value of z representing the 15th percentile C, the value of z that cuts of the upper 25% of the area under the curve 2. Find the area under the standard normal curve to the left of 1.2 3. Find the area under the standard normal curve to the right of 2.48. 4. Find...
Find the following probabilities based on the standard normal variable Z (Round your answers to 4 decimal places.) a. P(Z> 1.04) b. P(Zs -1.74) c. P(O s Z s 1.81) d. P(-0.81 s Zs 2.66)
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)
Please show the work !
Find the value of Z for the standard normal distribution such that the area a) in the left tail is 0.1000 b) between 0 and Z is 0.2291 and Z is positive c) in the right tail is 0.0500 d) between 0 and Z is 0.3571 and Z is negative 1) 2) Find the following binomial probabilities using the normal approximation a) n- 70, p-0.30, P(x-18) b) n-200, p 0.70, P(133 x S 145) c)...
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