Answer:
And we can find this probability with this difference
And we can see the figure in the plot attached.
Step-by-step explanation:
Let X the random variable that represent the redings on thermometers of a population, and for this case we know the distribution for X is given by:
Where
and
We are interested on this probability
We can use the z score formula given by:
Using this formula we got:
And we can find this probability with this difference
And we can see the figure in the plot attached.
Answer:
i dont know sorry
Step-by-step explanation:
Work:
$3 x 7 = $21
$5.50 x 7 = $38.50
$38.50 + $21= $59.50
Derek spend $59.50 in a week.
Answer:
<h2>21</h2>
Step-by-step explanation:
<em>Method 1:</em>

<em>Method 2:</em>

4/16 or 1/4 because 1 + 1 + 2 is 4 & 3 + 5 + 8 is 16 so the fraction will be 4/16 but u can also divide both by 4’s which is 1/4.