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Natalka [10]
3 years ago
15

Find the standard deviation, _, for the binomial distribution which has the stated values of n and p. n=38; p=2/5

Mathematics
1 answer:
NARA [144]3 years ago
5 0

Answer:

Solution: given that

n = 38

p = 2/5 = 0.4 q = 1-p = 1-0.4 = 0.6

standard deviation = sqrt(n*p*q)

sqrt(38*0.4*0.6) = 3.0199

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Terry practices the same amount of time each day for his soccer tryouts. In 4 days, he has practiced for 360 minutes. Let x repr
n200080 [17]

Answer:

90

Step-by-step explanation:

390 ( 40; 6 )

7 0
2 years ago
Explain how the graph of a quadratic function relates to the solutions of the related quadratic equation.
OleMash [197]

Answer:

The zeros of a quadratic function are the solutions of the related quadratic equation. If the graph of a quadratic function crosses the x-axis, there will be two real number solutions. If the graph of a quadratic function just touches the x-axis, there will be one unique real number, or double root, solution. If the graph of a quadratic function does not cross the x-axis, there will be no real number solution.

Step-by-step explanation:

Did the question.

8 0
3 years ago
Mrs. Thompson wants to buy centerpieces to use at a party. It will cost $49 to have the centerpieces delivered plus $0.89 per ce
dalvyx [7]

Answer:

49+0.89c

Step-by-step explanation:

This should be the answer good luck :)

8 0
3 years ago
Find the value of p for which x = -2, y = -1 is a solution of linear equation 5x + 2py = 2p.​
Rom4ik [11]
I think p=4
How I solved it:
5(-2)+2p+2(-1)=2p
-10+2p+-2=2p So cross out last
-2p -2p 2p:)
= -10+2p+-2
+10 +10 Cross out the 10
= 2p=8
= divide both sides by 2p
= 2p/2= 8/2
= cross out the 2.
= which leaves
= p=4 we get 4 because we divide 8 to 2:)


I don’t know if I’m right but yea...



8 0
3 years ago
Every weekday, Tasha walks 3/8 mile to go to school. After school, she walks 2/8 mile to go to her grandparents' house. Then she
fenix001 [56]

There are two possibilities, and we don't know which situation is true.

<em>#1).</em>  School is in the middle, between home and grandparents. 

Home --------- 3/8 ----------- School --------- 2/8 ------- Grandparents .

If this is true, then in the whole day, Tasha walks

(3/8 + 2/8 + 2/8 + 3/8) = 10/8  =  <u>1.25 miles</u> .

===========================================

<em>#2):</em>  Grandparents house is in the middle, between home and school.
Tasha passes by them on her way to school, and stops there to visit
on her way back home.

Home ------- 1/8 ------- Grandparents ---------- 2/8 ---------- School

If this is true, then in the whole day, Tasha walks

   (3/8 + 2/8 + 1/8) = 6/8  =  <u>3/4 mile</u> .


5 0
3 years ago
Read 2 more answers
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