A study measures blood pressure among college students. The blood pressure approximately follows a distribution with mean 100, and standard deviation 15. (a) What is the probability that the blood pressure is less than 97? (Round to 4 decimal places)

0.4207 is the probability that the blood pressure is less than 97.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100

Standard Deviation, σ = 15

We are given that the distribution of blood pressure is a bell shaped distribution that is a normal distribution.

Formula:

P(blood pressure is less than 97)

P(x < 97)

Calculation the value from standard normal z table, we have,  

0.4207 is the probability that the blood pressure is less than 97.

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

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i think c. but don't trust it.

step-by-step explanation: