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kicyunya [14]
3 years ago
9

Round each decimal to the nearest whole number 4.5​

Mathematics
1 answer:
Vikentia [17]3 years ago
3 0

its is the closet one too the right one

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One year had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitcher at
lord [1]

Answer:

Thomas had the better year relative to their​ peers.

Step-by-step explanation:

<u>The complete question is</u>: One year Thomas had the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​ pitched) of any male pitcher at his​ school, with an ERA of 3.31. ​Also, Karla had the lowest ERA of any female pitcher at the school with an ERA of 3.02. For the​ males, the mean ERA was 4.837 and the standard deviation was 0.541. For the​ females, the mean ERA was 4.533 and the standard deviation was 0.539. Find their respective​ z-scores. Which player had the better year relative to their​ peers, or ​? ​(Note: In​ general, the lower the​ ERA, the better the​ pitcher.)

We are given that for the​ males, the mean ERA was 4.837 and the standard deviation was 0.541. For the​ females, the mean ERA was 4.533 and the standard deviation was 0.539.

As, we know that the z-score is calculated by the following formula;

                                 Z  =  \frac{X-\mu}{\sigma} ~ N(0,1)

where, \mu = population mean

           \sigma = standard deviation

Now, firstly we will calculate the z score for Thomas;

z-score = \frac{X-\mu}{\sigma}

            = \frac{3.31-4.837}{0.541}  = -2.823

{Here, the mean ERA for the males was 4.837 and the standard deviation was 0.541}

Similarly, we will calculate the z score for Karla;

z-score = \frac{X-\mu}{\sigma}

            = \frac{3.02-4.533}{0.539}  = -2.807

{Here, the mean ERA for the females was 4.533 and the standard deviation was 0.539}

Now, it is stated in the question that the lower the​ ERA, the better the​ pitcher.

So, we can clearly see that Thomas had a lower ERA of z-score as -2.823 < -2.807. This means that Thomas had the better year relative to their​ peers.

5 0
3 years ago
Find the product of the<br>L.C.M and H.C.F of 8 and 12.​
V125BC [204]

Answer:

<h3>96 is the answer. </h3>

Step-by-step explanation:

<h3>The L.C.M of 8 and 12 is 24</h3><h3>The H.C.F of 8 and 12 is 4</h3>

<h3>We multiply </h3><h3>24 *4 we shall get 96 as the answer. </h3><h3 />
3 0
2 years ago
Read 2 more answers
HELP 20 POINTS I NEED AN ANSWER ASAP!!
N76 [4]
Middle right is your answer
6 0
3 years ago
Solve the linear equation. 8x+32=15(25x−15)−4x Enter your answer in the box.
Alona [7]

Answer: 9

Step-by-step explanation:

4 0
3 years ago
Sam lives 8 miles from work and Mike lives 30 miles from work. How much farther is Mike’s trip to work than Sam’s?
telo118 [61]
22 miles,
30miles - 8 miles = 22 miles
Mikes trip to work is 22 miles farther than sam’s
3 0
3 years ago
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