Answer:
The value of given expression is
.
Step-by-step explanation:
Given information: n=7, x=2, p=1/2

The given expression is

It can be written as

Substitute n=7, x=2, p=1/2 and q=1/2 in the above formula.






Therefore the value of given expression is
.
Answer:
Part A: 15 and 100 are the coefficients!
Part B: Two terms in the expression!
Step-by-step explanation:
Answer:
$12.25
Step-by-step explanation:
Step 1:
$294 : 24 Ratio
Step 2:
$294 ÷ 24 Divide
Answer:
$12.25
Hope This Helps :)
Answer:
145
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
9+8{7*6-5[4+(3-2*1)}]}
9+8{7*6-5[4+1]}
9+8{7*6-25}
9+8{42-25}
9+136
145
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Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!
Answer:
The value that represents the 90th percentile of scores is 678.
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean
and standard deviation
, the zscore of a measure X is given by:

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:

Find the value that represents the 90th percentile of scores.
This is the value of X when Z has a pvalue of 0.9. So X when Z = 1.28.




The value that represents the 90th percentile of scores is 678.