The average height of adult females is 64.4 inches, with a standard deviation of 2.3 inches and a normal distribution. rayna is 67.1 inches tall. what is the standardized score for rayna’s height?

a. -1.17
b. 1.17
c. -0.17
d. 0.17
e. unable to determine the standardized score

B. 1.17

Step-by-step explanation:

The z-score is:

z = (x − μ) / σ

z = (67.1 − 64.4) / 2.3

z = 1.17

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew

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