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
lara31 [8.8K]
3 years ago
7

Sofia is a helper for the kindergarten class and is in charge of picking a video for their end-of-year party to choose which typ

e
of movie they would like best, she decided to survey every other child entering a matinee for a cartoon called, "Three Pretty
Princesses. The total number of children surveyed was 40. What is wrong with the way she selected her sample? Check all
that apply
The sample of 40 children is too small to represent all kindergartners
The sample was taken at a specific movie, which will skew data towards that type of movie,
The sample is likely to include a lot more girls than boys, since the movie title is "Three Pretty Princesses."
The sample should include the adults with the children instead of only children
The sample should include the other peer helpers in her grade to include a greater age range,
Mathematics
2 answers:
maks197457 [2]3 years ago
5 0

The sample is likely to include a lot more girls than boys, since the movie title is "Three Pretty Princesses."

The sample should include the adults with the children instead of only children

The sample should include the other peer helpers in her grade to include a greater age range,

Assoli18 [71]3 years ago
4 0

Answer:

1,3,4 is the answer

Step-by-step explanation:

You might be interested in
I will give lots of points if you answer these few questions
docker41 [41]

Answer:

1. 20x+40

2. 6f+6g

3. 77-28x

Step-by-step explanation:

<u>Use distributive property for all</u>

1) 10(2x+9)-50

20x+90-50

20x+40

2) 6(f+g)

6f+6g

3) 77-28x  

4) 3.2(5w+3)

16w + 9.6

5 0
3 years ago
Read 2 more answers
Can you answer this for me PLEASE!!?
Sveta_85 [38]

Answer:

If im not mistaken it should be all real numbers

Step-by-step explanation:

6 0
4 years ago
Who is the better rapper Drake or Kendrick
Nina [5.8K]

Answer:

Drake

Step-by-step explanation:

8 0
3 years ago
Complete the square for -16x²+144x-80<br> Show All Work
eimsori [14]
-16x+144=128


answer is 128x-80
5 0
4 years ago
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate
yKpoI14uk [10]

Answer:

a) 0.5588

b) 0.9984

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 24

Standard Deviation, σ = 6.4

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}        

a) P(score between 20 and 30)

P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{6.4} \leq z \leq \displaystyle\frac{30-24}{6.4}) = P(-0.62 \leq z \leq 0.94)\\\\= P(z \leq 0.94) - P(z < -0.62)\\= 0.8264 - 0.2676 = 0.5588 = 55.88\%

P(20 \leq x \leq 30) = 55.88\%

b) Sampling distribution

Sample size, n = 22

The sample will follow a normal distribution with mean 24 and standard deviation,

s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{6.4}{\sqrt{22}} =1.36

c) P(mean score of sample is between 20 and 30)

P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{1.36} \leq z \leq \displaystyle\frac{30-24}{1.36}) = P(-2.94 \leq z \leq 4.41)\\\\= P(z \leq 4.41) - P(z < -2.94)\\= 1 - 0.0016 = 0.9984 = 99.84\%

P(20 \leq x \leq 30) =99.84\%

5 0
4 years ago
Other questions:
  • To prepare a wedding Aiden bought 16 candles. He paid $.37 for each candle. His sister bought 170 candle a sale where she paid f
    7·1 answer
  • Simplify the expression. Write the answer using scientific notation. (4 x 10^13)^-2 -8 x 10^-26 6.25 x 10^-27 0.0625 x 10^-26 6.
    9·2 answers
  • The table shows equivalent ratios. Find the missing numbers in the table.
    5·1 answer
  • A rectangle has a area of 45 square units.The length is 4 units less than the width.What are the dimensions of the rectangle
    10·1 answer
  • Determine the volume of a conical vessel having radius of the base as 5cm and its slant height as 13cm.
    13·1 answer
  • Find the values
    10·1 answer
  • A loan of $25,000 has an annual simple interest rate of 5.5%. The total cost of the loan is $38,750.
    12·1 answer
  • Bradley needs at least $280 for a new laptop. He has already saved $40. He earns $8 an hour at his job.
    12·1 answer
  • Simplify the expression.<br> 3x3 - 2x2
    8·1 answer
  • Which is the equation of a line with a slope of – į and a y-intercept at (0, 1)?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!