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
Ne4ueva [31]
3 years ago
12

Mr. Altaffer goes to the pet store to buy a few treats for his puppy. He chooses one and then another. What is the probability t

hat he chooses a dog bone and then a ball? [Enter fractions as #/# (with no spaces)] *
1 point
Captionless Image
Mathematics
1 answer:
Vaselesa [24]3 years ago
7 0

Answer:

50/100?

Step-by-step explanation:

You might be interested in
What is 45+65+222+1234+67+196 times 45
Damm [24]
<span>45+65+222+1234+67+196 times 45=10453</span>
5 0
3 years ago
Read 2 more answers
Use the formula to find the standard error of the distribution of differences in sample means, x¯1-x¯2. Samples of size 100 from
garri49 [273]

Answer:

standard error = 2.11

Step-by-step explanation:

First we stablish the data that we have for each sample:

<u>Population 1</u>                                          <u>Population </u>2

n₁ = 100                                                     n₂ = 90

x¯1= 95                                                    x¯2 = 75

σ₁ = 14                                                        σ₂ = 15                  

To calculate the standard error of each sample we would use the formulas:

σ = σ₁/√n₁

σx¯2 =  σ₂/√n₂

Now, in order to obtain the standard error of the differences between the two sample means we combine those two formulas to obtain this:

σx¯1 - σ x¯2  = √(σ₁²/n₁ + σ₂²/n₂ )

So as you can see, we used the square root to simplify and now we require the variance of each sample (σ²):

σ₁² = (14)² = 196

σ₂² = (15)² = 225

Now we can proceed to calculate the standard error of the distribution of differences in sample means:

σx¯1 - σx¯2  = √(196/100 + 225/90) =  2.11

This gives an estimate about how far is the difference between the sample means from the actual difference between the populations means.

6 0
3 years ago
A recent study was conducted in which a random sample of men and a random sample of women were surveyed about whether they were
Feliz [49]

Answer:

e. We are 99% confident that the difference in the population percents of all men and women who are fans of a professional football team is between 13.3% and 20.7%.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

In this question:

99% confidence interval for the difference  in the proportion of fans of a professional football team between men and women is of (0.133, 0.207)

The interpretation is that we are 99% sure that the true proportion is in this interval for the entire population, so the correct answer is given by option e.

5 0
3 years ago
If 2, x,18 and 54 are in proportion then what is the value of x.<br>​
Anettt [7]
I think the answer to this question is 18
7 0
2 years ago
A home Improvement store advertises 60 ft.² of flooring for 287.00 including an 80.00 installation fee write an equation to repr
anastassius [24]

Answer:

cost = \frac{287}{60} +80

Step-by-step explanation:

So, for 60 square feet they charge = 287

So, for 1 square foot they charge = \frac{287}{60}

If they charge the installation fee this becomes = \frac{287}{60} +80

We can write an equation to calculate cost by using this =\frac{287}{60} x +80

Where x is the amount of square foot

3 0
3 years ago
Other questions:
  • Sebastion also completed the math problem, but his time is not on the timeline plot. When Sebastion's time is placed on the line
    6·1 answer
  • What is the distance from (−4, 0) to (2, 5)? Round your answer to the nearest hundredth. (4 points)
    5·1 answer
  • If the rate 130 miles per 2 hours is reduced to a unit rate, the result is
    9·1 answer
  • What is the mode of the following numbers?<br> 9, 10, 6, 5, 6
    8·2 answers
  • Select the correct answer.
    14·1 answer
  • What is the percentile for data value 6 in the following data set?
    8·1 answer
  • Which of the following data sets would most likely be normally distributed.
    14·1 answer
  • Choose the graph that represents the following system of inequalities:
    5·1 answer
  • Hey! i’ll give brainliest please help
    7·1 answer
  • I'm having a hard time solving this<br> May I please have an explanation
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!