z is a standard normal random variable. The P(-1.96 ≤z S-1.4) equals O a. 0.475 Ob. 0.0558 O c. 0.4192 O d. 0.8942

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A:

Q: Let Z be a standard normal random variable. Use the calculator provided, or this table, to determine…

A: From the provided information, P (-c ≤ Z ≤ c) = 0.9371

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A: Z has standard normal distribution.

Q: If z is a standard normal variable, find the probability when z is less than 1.98 0.9078 0.0239…

A: Z is a standard normal variableProbability that z is less than 1.98 is given by,

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Q: ind P(Z < 2.04) where Z is the standard normal random variable. Round to 4 decimal places. Answer:

A: given data  standard normal distribution Z~N(0,1) P(z&lt;2.04) = ?

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A: The value can find from standard normal table

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A: Introduction -   Median  M=X1+X22where,X1=the largest value of X such that P(X≤X1)≤0.5X2=the…

Q: Assume the random variable X is normally distributed with mean u = 50 and standard deviation o = 7.…

A: We have given that.   X~N( μ , ?^2 )   μ = 50 , ? = 7   Z-score =( x - μ )/?

Q: If z is a standard normal variable, find the probability when z is less than 1.98

A: Given that, Z score = 1.98 Left tailed

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A:

Q: Let z be the standard normal random variable then P (1+0.230 <z< 2.74) = %3D a. 0.0866 b. 0.0903 C…

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Q: Find P(Z > 1.6) where Z is the standard normal random variable. Round to 4 decimal places. Answer:

A: given data  standard normal distribution  Z~N(0,1) P(Z≥1.6) = ?

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A: Option (c) is correct

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A: Draw the normal curve and shade the area to the left of z=0.57.

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Q: Let Z be a standard normal random variable and calculate P(0.125 ≤ Z). Excel Worksheet-1.xlsx Click…

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Q: let z be the standard normal random variable. 2 Find  P(z < 1.24)       a 0.9371   b 0.8925   c…

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Q: Suppose x is a uniform random variable with a = 10 and b = 90. Find (P(x > 66 | x > 50).     0.25…

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Q: What value of the x axis marks the top 25% of the distribution?

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Q: If z is a standard normal variable, find the probability. P(-0.77<z<2.29) O0.8386 O 0.7904 O 0.7683…

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Q: Question 2. Let X be a normal random variable with u = -5 and o² = 4. a) Find P(X –3|X > -5).

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Q: b) P(-1.102.13) 27

A: Question 10)The Z is the standard normal variable.