Step-by-step answer:
standard deviation (sigma) = 12 inches
mean (mu) = 90 inches.
For 36 years, the standard error of the mean is
e = sigma / sqrt(n) = 12" / sqrt(36) = 2".
Deviation from the mean
= 92.8 -90 = 2.8
Since the standard error of the mean follows the normal distribution, we have
Z=(92.8-90)/2 = 1.4
Looking up the normal distribution tables, or check R, we find
P(Z>1.4) = 1-P(Z<1.4) = 1-0.9192433 = 0.08075666
Answer: P(snowfall>92.8) = 0.0808 (to four decimal places)
Answer:
I'm not for sure but I think that Attribute is stopwatch, Unit of Measure is seconds, Likely Means Of Measurement is time to run a 100-meter race, and Number of Observations is 7.
Step-by-step explanation:
Hope this helps. :)
Answer:
see below
Step-by-step explanation:
7 x 13 (split 13 into 10 + 3)
= 7 x ( 10 + 3) (expand parentheses by distributive property)
= (7 x 10) + (7 x 3)
= 70 + 21
= 91
Answer:
8
Step-by-step explanation:
if you take all of the numbers 5 5 6 6 7 7 7 8 8 8 9 9 9 9 10
8 is in the midle thus making it the median
i apologise if this is wrong i have not done this kind of math in a while, but i hope this helps
