Answer: 16
Step-by-step explanation:
Complete question :
The average amount that a college student spends on a textbook is $205 with a
standard deviation of $35. What is the probability that a student spends:
A. between $10 and $310?
Answer:
0.999
Step-by-step explanation:
Mean, m = 205 ; Standard deviation, s = 35
Z = (x - m) / s
x = 310
Z = (310 - 205) / 35 = 3
P(z < 3) = 0.99865
x = 10
Z = (10 - 205) / 35 = - 5.57
P(Z < - 5.5)
P(z < 3) - P(z < - 5.5)
0.99865 - 0
= 0.999
Answer:
there's a choices maam... can you shoe to me? so I can answer your question correctly :)
<em>1: 13,148,719.2 beats</em>
<em>2: 5 5/6 days</em>
<em>3: 7 days, 5 hrs, and 2 minutes</em>
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<em>Hope this helped. Have a good day~</em>
