Question 5 I was wrong this problem. hey guy can you help me for this problem?
X is a normally distributed random variable with a mean of 57 and a standard deviation of 6. Find the following:

a) P(X < 52) = _

b) P(X > 55) = _

c) P(50 < X < 60) = _

d) A what value is the top 25%? _

Round to 4 numbers after the decimal.

X is a normally distributed random variable with a mean of 57 and a standard deviation of 6. Find the following:

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

a

step-by-step explanation:

answer: (-8,4) are the coordinates of a

step-by-step explanation:

let the side of square abcd is x .

thus the area of square abcd is .

now, by the diagram area of triangle ead= 1/2 × ea × ad = 1/2 × ea × x

( because ad is the side of square)

and, according to the question,

the areas of square abcd and right ead are equal.

⇒

⇒ea=2x

thus, ea: ab=2: 1

therefore, point a divides line segment eb into the ratio 2: 1.

⇒ by sectional formula coordinates of a are,

=

=

=(-8, 4)

thus the coordinates of a are (-8,4)