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hjlf
3 years ago
15

!!!!Do not respond with I don't know or anything but help with the answer just for the points!!!!! The average test score A of f

ive test scores t 1​, t 2​, t 3​, t 4​, and t 5 can be computed by the formula shown below.
A=t 1​+t 2​+t 3​+t 4​+t 5/(over)5

If a student has test scores of 88​, 71​, 80​, and 72​, what score does she need on the fifth test so that her​ five-test average is 76​?
Mathematics
1 answer:
zepelin [54]3 years ago
8 0

Answer:

69

Step-by-step explanation:

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In any​ year, the weather can inflict storm damage to a home. From year to​ year, the damage is random. Let Y denote the dollar
krok68 [10]

Answer:

a. mean = 1000

standard deviation = 4358.9

b. expected value of average damage bar Y = 1000

probability bar y exceeds 2000 = 0.011

Step-by-step explanation:

we have p1 = 95%, y1 = 0, p2 = 5%, y2 = 20000

Mean = (0.95 * 0) + (0.05 * 20000)

= 1000

var(y) = E(y²) - E(Y)²

= we solve for E(y)²

= 0²*0.95 + 20000²*0.05

= 0 + 20000000

then the variance of y = 20000000 - 1000²

=20000000-1000000

= $19000000

standard  deviation is the square root of variance

= √19000000

= 4358.9

2.

a. Expected value of average is also the mean = 1000

b. we are to find probability that barY exceeds 2000

z=\frac{2000-1000}{\sqrt{19000000/100} }

= 1000/435.889

= 2.29

1-p(z≤2.29)

= 1 - 0.989

= 0.011

so the probability that barY exceeds 2000 is 0.011

8 0
3 years ago
Pls give all numbers
Bess [88]
Turkey dinner has to be zero as 0/? = 0 and it would be undefined if it was ?/0

Dinner plate would be 0 as ? * 0 * ? = 0

Radish is ?^2 cake as solving for radish will get that

Cake will be 4 as turkey is 0

Since cake is 4, radish is 16

Let’s plug them in to figure it out

0 / 4 = 0 ✅
16 * 0 * 4 = 0 ✅
4 = 16 / 4 ✅
4 / 4 = 0 + 1 ✅
0 + 16 * 4 = 64

Turkey = 0
Cake = 4
Radish = 16
Dinner plate = 0
? = 64
7 0
2 years ago
Jerome bought 2 adult tickets and 7 student tickets for a play.How much did he spend?Show any equations used.Ticket pricesStuden
Stels [109]

From the information given,

Students ticket = $4

Adult ticket = $6

Let student ticket be x, and adult ticket be y.

This means;

\begin{gathered} Cost=2y+7x \\ C=2(6)+7(4) \\ C=12+28 \\ C=40 \end{gathered}

ANSWER:

The calculations show that Jerome spent a total of $40

3 0
1 year ago
How can the order of operations be used to simplify expressions? Create your own unique example showing order of operations.
Lostsunrise [7]
10(13+12)=x thats a good one
4 0
3 years ago
Mikayla's mom told her she will make her a special dinner if she scores 80% on her
OLga [1]

Answer:

20

Step-by-step explanation:

80% of 25 is 20, even if you put it into a calculator

3 0
3 years ago
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