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
Lapatulllka [165]
3 years ago
13

A survey asked people whether their pets are picky eaters. For these results, are being a picky eater and being a cat independen

t or dependent events?
Justify your answer.

Mathematics
1 answer:
masha68 [24]3 years ago
5 0

Answer: Choice B. Dependent; probabilities are not equal

P(picky) = 34%

P(picky | cat) = 44%

This is a vertical bar separating "picky" and "cat". It is not an uppercase letter i or lowercase letter L.

=================================================

Explanation:

There are 17 total picky eaters out of 50 pets total. The probability of randomly choosing a picky eater is

P(picky) = 17/50 = 0.34 = 34%

The notation P(picky | cat) translates to "probability of getting a picky eater given the pet is a cat". In other words, we have prior knowledge the pet is a cat. So we only focus on the cat row. We have 11 picky cats out of 25 cats total. This means

P(picky | cat) = 11/25 = 0.44 = 44%

Notice how this result is different from 34% found earlier. The fact that we have prior knowledge the pet selected is a cat changes the probability of P(picky). This means the events are dependent. If they were independent events, then P(picky) = P(picky | cat) would be true.

You might be interested in
HELP I WILL MARK BRAINLEST
OverLord2011 [107]

its only showing "help i will mark brainliest"..?

8 0
3 years ago
Estelle treated her sister to lunch while visiting her in Lowell. Their lunch cost $80, and the sales tax in Lowell is 15%. If E
yan [13]

Answer:

Estelle paid $104 in total.

Step-by-step explanation:

15% of $80.00 is 12. So add 12 two times to 80 because of 15% sales tax and 15% tip.

3 0
3 years ago
Plz help!
beks73 [17]

First, you need to find the derivative of this function.  This is done by multiplying the exponent of the variable by the coefficient, and then reducing the exponent by 1.  

f'(x)=3x^2-3

Now, set this function equal to 0 to find x-values of the relative max and min.

0=3x^2-3

0=3(x^2-1)

0=3(x+1)(x-1)

x=-1, 1

To determine which is the max and which is the min, plug in values to f'(x) that are greater than and less than each.  We will use -2, 0, 2.

f'(-2)=3(-2)^2-3=3(4)-3=12-3=9

f'(0)=3(0)^2-3=3(0)-3=0-3=-3

f'(2)=3(2)^2=3(4)-3=12-3=9

We examine the sign changes to determine whether it is a max or a min.  If the sign goes from + to -, then it is a maximum.  If it goes from - to +, it is a minimum.  Therefore, x=-1 is a relative maximum and x=1 is a relative miminum.

To determine the values of the relative max and min, plug in the x-values to f(x).

f(-1)=(-1)^3-3(-1)+1=-1+3+1=3

f(1)=(1)^3-3(1)+1=1-3+1=-1

Hope this helps!!

7 0
3 years ago
Ed had a gross income of $3255.29 during each pay period in 2010. If he got paid monthly, how much of his pay was deducted for F
pogonyaev
If you start and the begging of the year and the end and how much you make and at the end of the year you will know our income.
5 0
3 years ago
Read 2 more answers
Freddie worked 9 days at the stratham fair and earned 518.40. if he worked 8 hours each day, what was his hourly wage
victus00 [196]
Divide 518.40 by 8..
6 0
3 years ago
Other questions:
  • sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is
    6·1 answer
  • The sum of two numbers is 121. If the larger number is thirteen more than the smaller number, find both numbers
    14·1 answer
  • Identify the terms of the expression. Then give the coefficient of each term. 11r+7s
    6·1 answer
  • How do you solve substitution problems in Pre Algebra
    6·2 answers
  • What is nonconsecutive quadrilateral?
    8·2 answers
  • Which of the following is irrational?<br> 2<br> v1.44<br> 1
    9·1 answer
  • What is 5(n-1)=2(n-4)-6
    12·2 answers
  • Write an equation for a direct variation that includes the point (3, 18)
    5·1 answer
  • Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each sale
    10·1 answer
  • The height of an<br> equilateral triangle is<br> 11√12. What is a side<br> of the triangle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!