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Gre4nikov [31]
3 years ago
13

WILL MARK BRAINLIEST A sample of 64 was taken from a population, with the mean of the sample being 119 and the standard deviatio

n of the sample being 16. What is the 68% confidence interval for the mean of the population?
A. (115, 123)
B. (117, 121)
C. (113, 125)
D. (118, 120)
Mathematics
1 answer:
Anettt [7]3 years ago
6 0

Answer:

B. 117, 121

Step-by-step explanation:

You might be interested in
Really easy math question
Eddi Din [679]

Number of sodas sold = 130

Number of hot dogs sold = 65

Step-by-step explanation:

Given,

Combined number of sodas and hot dogs sold = 195

Let,

x represent the number of sodas sold

y represent the number of hot dogs sold

According to given statement;

x+y=195     Eqn 1

x = 2y        Eqn 2

Putting value of x from Eqn 2 in Eqn 1

2y+y=195\\3y=195

Dividing both sides by 3

\frac{3y}{3}=\frac{195}{3}\\y=65

Putting y=65 in Eqn 2

x=2(65)\\x=130

Number of sodas sold = 130

Number of hot dogs sold = 65

Keywords: linear equation, substitution method

Learn more about substitution method at:

  • brainly.com/question/12973601
  • brainly.com/question/13063819

#LearnwithBrainly

4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!! WILL MARK BRAINLIEST!
Andrews [41]

Answer:

15) 37 16) -5x+13=-112, x=25 23) l=38, w=19

Step-by-step explanation:

15) l=5w+2, 2l+2w=88

2(5w+2)+2w=88

12w+4=88

w=7, l=37

16a) -5x+13=-112

16b) x=25

23) l=2w, 2l+2w=114

2l+l=114

l=38, w=19

6 0
3 years ago
The radius of the cone is 3 in and y = 5 in. What is the volume of the cone in terms of π?
Tcecarenko [31]

Answer:

  12π in³

Step-by-step explanation:

The right triangle formed by the radius (r), height (x), and slant height (y) is a 3-4-5 right triangle, with the dimension 4 inches being the perpendicular height from the base to the apex. That is, the Pythagorean theorem tells us ...

  r² + x² = y²

  x = √(y² -r²) = √(25 -9) = 4 . . . inches

The formula for the volume of a cone is ...

  V = (1/3)πr²h . . . . . . . . h is the height, what you call x

Your cone has r = 3 in, h = 4 in. Filling in these numbers and simplifying, we get ...

  V = (1/3)π(3 in)²(4 in) = 12π in³

The volume of the cone is 12π cubic inches.

6 0
3 years ago
Read 2 more answers
Simplify 6(x + 3).<br><br> 6x + 3<br> x + 18<br> 6x + 18<br> 6x + 9
Kisachek [45]

Answer:

the answer of this question is = 6x + 18

7 0
2 years ago
The polygon Q(3, 2), R(6,5), S(6, 2)
ycow [4]

Answer:

Q' (12,8) , R'( 24,20) and S' (24,8)

Step-by-step explanation:

Here, we want to get the coordinates of the image after dilating the pre-image by a scale factor of 4

What we have to do here is to multiply each of the coordinate on the pre-image by 4

We have this as;

Q' = (4*3, 2 * 4) = (12,8)

R' = (4*6, 4*5) = (24,20)

s' = (4*6, 4*2) = (24,8)

4 0
3 years ago
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