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
if 6 banannas are $1.50 and 5 oranges are $3.00 how much would it cost if i buy 2 banannas,and 2 oranges.
Deffense [45]
2 bananas are $0.50
2 oranges are $1.20
5 0
2 years ago
Read 2 more answers
Lamonte finds some nickels and quarters under the couch cushions. How many coins
Lemur [1.5K]

Answer:16 coins and x+y

Step-by-step explanation:

6 0
2 years ago
EVALUATE THE WORD PROBLEMS
andrezito [222]
Another effective strategy for helping students improve their mathematics performance is related to solving word problems. More specifically, it involves teaching students how to identify word problem types based on a given problem’s underlying structure, or schema. Before learning about this strategy, however, it is helpful to understand why many students struggle with word problems in the first place.

Difficulty with Word Problems

Most students, especially those with mathematics difficulties and disabilities, have trouble solving word problems. This is in large part because word problems require students to:
7 0
2 years ago
Determine the value of 217
BlackZzzverrR [31]
The answer in decimal form should be 5.3 if you round it up
4 0
2 years ago
Solve the system by substitution <br><br> -8x+y=-9<br> y=7
aleksandr82 [10.1K]
In point for (2,7) and in Equation form x=2 y=7
6 0
3 years ago
Other questions:
  • I do not understand this problem PLEASE HELP
    14·1 answer
  • Please help<br> Thank you
    10·1 answer
  • What is 2000 times 2
    10·2 answers
  • Please help with this problem . Break it down for me 15-1/6n=1/6n-1
    15·2 answers
  • Cos³x.tan²x - cosx = ?
    6·1 answer
  • The difference of two number is 3. Their sum is 13. Write and alive a system of equations to help find the numbers
    5·1 answer
  • What is the probability of spinning a yellow?
    13·2 answers
  • Solve the two-step equation 5x + 6 = 26
    14·2 answers
  • PLEASE HELP ME I DON’T UNDERSTAND
    11·1 answer
  • How was your day and what did u do
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!