Assume that the random variable X is normally distributed, with mean μ = 70 and standard deviation σ = 13.
Find P(X ≤ 65) =
Solution :
Given that ,
mean = = 70
standard deviation = =13
P(x 65)
= P[(x - ) / (65-70) / 13]
= P(z -0.38 )
Using z table,
=0.3520
Assume that the random variable X is normally distributed, with mean μ = 70 and standard...
Assume that the random variable X is normally distributed, with mean μ = 135 and standard deviation σ = 28. Find P(X < 152) =
6) Assume X is a normally distributed random variable with mean μ= 53 and standard deviation σ-12. Find P(52<X< 62). A) 0.5137 B)0.4269 C) 0.3066 D) 0.2108 E) 0.3635
Assume that the random variable X is normally distributed, with mean μ = 110 and standard deviation σ = 5. Compute the probability P(X > 114). Round to four decimal places.
Assume the random variable x is normally distributed with mean μ=50 and standard deviation σ=7. Find the indicated probability. P(x>34)
Assume the random variable x is normally distributed with mean μ=50 and standard deviation σ=7. Find the indicated probability. P (x>38)
Assume the random variable x is normally distributed with mean μ=88 and standard deviation σ=4. Find the indicated probability. P(78<x<82)
Assume the random variable x is normally distributed with mean μ=82 and standard deviation σ=44. Find the indicated probability. P(x<79 ) P(xl<79 )=______ (Round to four decimal places as needed.)
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7. Find the 96th percentile. The 96th percentile is _______
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=77. Find the 89th percentile.
Assume the random variable X is normally distributed, with mean μ=46 and standard deviation σ=66. Find the 10th percentile