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calories consumed by members of a track team the day before a race are normally distributed, with a mean of 1,700 calories and a standard deviation of 100 calories. if a normal curve is sketched using these data, what is the range for 3 standard deviations to the right and to the left of the mean?

a. 1,400–2,000
b. 0–3,500
c. 1,600–1,800
d. 1,500–1,900

Option A.

Step-by-step explanation:

3 standard deviation to the right from the mean is

= 1700 + 3 * 100

= 2000

3 standard deviation to the left from the mean is

= 1700 - 3 * 100

= 1400

A

Step-by-step explanation:

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

(c, 0) i might be wrong so don't put full faith on my answer