Answer:
=14+7x=35
=7x =35-14
=x =21/7
x=3
The answer is 3
Step-by-step explanation:
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Answer:
The upper bound is 399.5
Step-by-step explanation:
Let's start by calculating the mean value of the distribution as the addition of all values given divided by 12:
Average = 289.75.
If the standard deviation is 56, then the upper bound in 95% the confidence interval for the mean price of the phones is going to be given by the mean value added to 56 times 1.96 (since 95% of the population is withing 1.96 times the standard deviation)
That is: 289.75 + 56 * 1.96 = 399.51
which rounded to one decimal place gives: 399.5
Answer:
5 laps
Step-by-step explanation:
30 ÷ 6 = n
n=5
19,7,and 61 im not sure about the last one
