Answer:
14/15
Step-by-step explanation:
P(S or T) = P(S) + P(T) = 3/5 + 1/3
= 9/15 + 5/15 = 14/15
I'm pretty sure the answer is -3
Answer:
Here is a summary of the Boston Marathon completion times for two years.
Year
Mean (minutes)
Standard deviation (minutes)
Number of runners
2012
263
50
21,576
31,984
2014
243
52
A sports journalist takes separate random samples of 35 runners from each year. Then they look at the
difference in the mean completion time sampled from each year 2012 - 2014).
What do we know about the shape of the sampling distribution of D2012 22014, and why?Step-by-step explanation:
By permutation without repetition, there are 524160 possible different special pizzas.
The possible special pizzas can be calculated with permutation without repetition. The formula of permutation without repetition can be written as
P = n! / (n - k)!
where P is all of the possible combinations, n is the number of objects or elements, and k is how many numbers should be chosen.
From the question above, we know that :
n = 16
k = 5
By substituting the parameters, we can determine all of the possible different pizzas
P = n! / (n - k)!
P = 16! / (16 - 5)!
P = 16! / 11!
P = 16 x 15 x 14 x 13 x 12 x 11! / 11!
P = 524160
Hence, there are 524160 possible different special pizzas
Find out more on permutation without repetition at: brainly.com/question/1216161
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How is 20/100 = 13...
Anyways, look at the two fractions.
20/100 and 80/100
Notice how 20 times 4 equals 80?
So maybe, 13 * 4 = 52.
