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balu736 [363]
2 years ago
5

It is believed that 90 percent of the population of all students consider statistics to be an exciting subject. Suppose we rando

mly and independently selected 20 students from the population. Find the probability that at least 15 of these students consider statistics to be an exciting subjec
Mathematics
1 answer:
statuscvo [17]2 years ago
7 0

Answer:

18 students

Step-by-step explanation:

90 percent of 20 is 18. 75 percent of 20 is 15.So More than 15 students .

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4 years ago
A cone has a volume of 602.88 cubic centimeters and a radius of 6 centimeters. What is its height? Use ​ ≈ 3.14 and round your a
meriva

Answer:

15.98cm

Step-by-step explanation:

Given data

Volume= 602.88cm^3

Radius= 6cm

The formula for the volume of a cone is

V= 1/3 πr^2h

substitute

602.88= 1/3*3.142*6^2*h

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602.88=37.704*h

h= 602.88/37.704

h= 15.98cm

Hence the height is 15.98cm

6 0
3 years ago
F(x) = 3x^2 + 4x - 7<br> g(x) = 5x - 3<br> Find (f +g) (x)
snow_tiger [21]

f(x) = 3x^2 + 4x - 7          g(x) = 5x - 3

(f + g)(x) = f(x) + g(x)\\= (3x^2 + 4x - 7) + (5x - 3)\\= 3x^2 + 4x - 7 + 5x - 3\\= 3x^2 + 9x - 10

4 0
3 years ago
Factor completely. 5x^2-20x+20=5x 2 −20x+20
Harman [31]

Step-by-step explanation:

5x^2 - 20x + 20 = 5x^2 - 20x + 20

5(x^2 - 4x + 4) = 5(x^2 - 4x + 4)

(5 + 5) (x^2 - 4x + 4)

5 0
3 years ago
The price of XYZ stock fluctuates widely. In January it closed at $3.50 but In February it Closed at $2.25. However at the end o
son4ous [18]

Answer:

$3.583

Step-by-step explanation:

Given the monthly stock prices :

January = $3.50

February = $2.25

March = $5.00

The average monthly change in price of XYZ stock from. JANUARY through MARCH is;

(January + February + March) / 3

Average monthly change :

(3.50 + 2.25 + 5.00) / 3

$10.75 / 3

= $3.583

8 0
3 years ago
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