Answer:
x = 4
Step-by-step explanation:
To solve, simplify the expression then use inverse operations to isolate x.
An elevator is 2/3 full. The people in the elevator weigh 1/3 ton altogether. How many tons can the elevator carry when it is co
1 answer:
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Using it's concept, the standard deviation for the given data-set is of 8.22.
<h3>What are the mean and the standard deviation of a data-set?</h3>- The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.
- The standard deviation of a data-set is given by the square root of the <u>sum of the differences squared between each observation and the mean, divided by the number of values</u>.
The mean for this problem is:
M = (17 + 26 + 28 + 9 + 30 + 29 + 6 + 21 + 23)/9 = 21
Hence the standard deviation is:
More can be learned about the standard deviation of a data-set at brainly.com/question/12180602
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Answer:
Step-by-step explanation:
We have the following solution:
We want to find the value of x that satisfies the following condition:
y(3) = 3.
This means that when x = 3, y = 3. So