Krutika was thinking of a number. Krutika halves the number and gets an answer of 86. Form an equation with
1 answer:
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Answer:
220 possible ways
Step-by-step explanation:
Given
--- people
-- posts
Required
Determine the number of selection
Since there is no condition attached, the number of selection is:
Substitute values for n and r
Apply combination formula
<em>Hence, there are 220 possible ways</em>
Answer:
The first error she made in computing the variance was to have placed -1,024 instead of +1,024
Step-by-step explanation:
we have the data set
87, 46, 90, 78, and 89
step 1
Find the mean
step 2
Subtract the Mean for each value of data set and square the result and then adds the numbers
so
The first error she made in computing the variance was to have placed -1,024 instead of +1,024
step 3
Work out the mean of those squared differences
----> this value is called the "Variance"