1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mojhsa [17]
3 years ago
14

3. Suppose the mystery bag had resulted in the following number of red chips. Using the simulated sampling distributions found e

arlier in this lesson, find a margin of error in each case.
a. The number of red chips in a random sample of size 30 was 10.
b. The number of red chips in a random sample of size 30 was 21.
c. The number of red chips in a random sample of size 50 was 22.
Mathematics
1 answer:
Vinvika [58]3 years ago
3 0

Answer:

a) 0.172

b) 0.167

c) 0.1404

Step-by-step explanation:

Margin of error, E = 2\times\sqrt{\frac{p(1-p)}{n}}

here,

p = probability of the event

n = sample size

a) n = 30

p = 10 ÷ 30 = 0.333

Therefore,

E = 2\times\sqrt{\frac{0.333(1-0.333)}{30}}

= 2 × 0.0861

= 0.172

b)  n = 30

p = 21 ÷ 30 = 0.7

Therefore,

E = 2\times\sqrt{\frac{0.7(1-0.7)}{30}}

= 2 × 0.0836

= 0.167

c) n = 30

p = 22 ÷ 50 = 0.44

Therefore,

E = 2\times\sqrt{\frac{0.44(1-0.44)}{50}}

= 2 × 0.0702

= 0.1404

You might be interested in
What is the slope of the line represented by the points in the table?
emmainna [20.7K]

Answer:

Step-by-step explanation:

Hello : let  A(XA,YA)    B(XB,YB)

the slope is :   (YB - YA)/(XB -XA)

7 0
3 years ago
Read 2 more answers
14 + 5x = 3(-x + 3) -11 please show work step by step
mr Goodwill [35]

14+5x=3(-x+3)-11

14+5x=-3x+9-11

14+5x=-3x-2

add 2 to both sides

16+5x=-3x

subtract 5x from both sides

16=-8x

divide both sides by -8

-2=x

Hope this helps! :)

3 0
3 years ago
Each of these is a pair of equivalent ratios for each pair explain why they are equivalent A: 4:5 and 8:10
alisha [4.7K]
They are equivalent because 4:5 can both be multiplied by 2 making 8:10.
5 0
3 years ago
Jason eats 10 ounces of candy in 5 days. a. How many pounds does he eat per day?
Nadusha1986 [10]
A. He eats 1/8 a pound of candy each day.
B. It would take him a total of 8 days to eat a pound of candy.

A. Since he ate 10 ounces in 5 days, you divide 10 by 5 to find he ate 2 ounces per day. Since there are 16 ounces in a pound that would be your denominator (bottom of fraction) and 2 would be the numerator (top of your fraction). You will get 2/16 which if you simplify (divide by 2) you get 1/8.

B. Knowing that there are 16 ounces per pound and he ate 1/8 pound ( 2/16 pound or 2 ounces) a day, you can either look at the simplified denominator to get the answer, or, divide 16 by 2 to get your answer.

I hope this helps!
8 0
3 years ago
What is the relationship between the degree measure of the angle formed by the straight edges of a section of a circle graph as
Butoxors [25]

Answer:

  degree measure = 360° × percent of data

Step-by-step explanation:

The ratio of the degree measure of a sector of a circle graph to 360° is the same as the ratio of the represented data to the whole amount of data.

The idea of a circle graph is that the area of the sector is proportional to the data being represented. That is, if the data represented is 10% of the whole, then the sector area is 10% of the whole. Sector area is proportional to the degree measure of its central angle, so the example sector would have a central angle of 10% of 360°, or 36°.

The ratio of the central angle of the sector to 360° is the same as the percentage of data that sector represents.

7 0
3 years ago
Other questions:
  • Andrew makes $6 an hour plus $9 an hour for every hour of overtime. Overtime hours are any hours more than 40 hours for the week
    7·1 answer
  • F(x)=-3|x-4| Vertical shrink by a factor of 1/2
    15·1 answer
  • Write y=6x-4 in standard form
    12·1 answer
  • "Use distributive property, show work: 7(2x1)"
    9·2 answers
  • In the diagram, m∠COE = 55°. If m∠2 = 2x and m∠3 = x + 10, what is the measure of angle 2?
    13·2 answers
  • How do I solve y< -1/2x -4
    10·1 answer
  • maria draws one marble from a bag containing 5 red, 3 green, and 4 yellow. the probability she draws a yellow marble is____
    7·1 answer
  • Look at the function below. f(x)=−x2−2x+8
    5·1 answer
  • If 6 chocolate chip cookies cost $2.40. What will 9 chocolate chip cookies cost?
    5·2 answers
  • which function is best represented by this graph?A) f(x) = -3x² + 2x + 1 B) f(x) = 3x² + 2x - 4C) f(x) = x² + x - 4D) f(x) = x²
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!