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
BlackZzzverrR [31]
3 years ago
10

Asociologist is studying influences on family size. He finds pairs of sisters, both of whom are married, and determines for each

sister whether she has 0, 1, 2 or more children. He wishes to compare older and younger sisters. Explain what the following hypotheses mean and how to test them.
Required:
a. The number of children the younger sister has is independent of the number of children the older sister has.
b. The distribution of family sizes is the same for older and younger sisters. Could one hypothesis be true and the other false? Explain.
Mathematics
1 answer:
Mazyrski [523]3 years ago
6 0

Answer:

:0

Step-by-step explanation:

You might be interested in
What is 1 7/10 divided by 3/5 ?
charle [14.2K]
The first step is to change the mixed number into an improper fraction.
1 7/10 = 17/10
(17/10) / (3/5) =
(17/10) * (5/3) = (change the division to a multiplication by the reciprocal.
17/6 = 2 5/6
6 0
3 years ago
Read 2 more answers
What number is 40% of 720
pentagon [3]

Answer:

288

Step-by-step explanation:

Hope it helps :>

8 0
3 years ago
Read 2 more answers
A population of rabbits triples every month.the population starts with two rabbits.how many rabbits are there after 3 month's
Tresset [83]
The answer would be 54. Because you start with 2.
2x3 = 6
6x3 = 18
18x3 = 54
Each month it triples so you continue
to add 3 to each result.
7 0
4 years ago
Solve the quadratic equation by factoring: 15x^2+4x-4=0
joja [24]
We can factor by grouping. To do so, we multiply the leading coefficient with the constant at the end. In other words, a times c (ax^2 + bx + c).

15*-4 = -60

Now we need to split the b term into two pieces that multiply to -60 and add to 4.

-6 and 10 will work.

Now group one part of b with the 15x^2 and the other part with -4.

(15x^2 + 10x) + (-6x - 4)

Now factor both terms.

5x(3x+2) - 2(3x+2)

3x+2 is one of our factors and 5x-2 is the other.

(3x+2)(5x-2)=0

Now just find the zeros.

3x+2 = 0
3x = -2
x = -2/3

And

5x-2 = 0
5x = 2
x = 2/5

So the answer is x = -2/3 and x = 2/5






7 0
3 years ago
Find the consecutive positive odd integers whose product is 99​
dezoksy [38]

Answer:

9 and 11

Step-by-step explanation:

So let's say that the first integer is x.

That means that the second integer is x+2, since it us the next odd number.

This problem can be easily solved with our mind the answer is 9 and 11, but I'll show you the steps to slove this.

We make an equation using these two numbers:

(x)*(x+2)=99\\

Now all we gotta do is solve for x:

x^2 +2x = 99\\x^2+2x-99=0

Now we use either splitting the middle term or quadratic formula:

x^2+11x-9x+99=0\\x(x+11)-9(x+11)=0\\(x+11)(x-9)=0

Now we split each terma and solve for x:

(x-9)=0\\x=9\\(x+11)=0\\x=-11

Now the question states <em>positive </em>so we can rule out x = -11.

Now we have the first integer x = 9,

the second integer is x+2 = 9+2 =11

So the two consecutive positive odd integers are 9 and 11

4 0
3 years ago
Other questions:
  • ~PLEASE HELP ASAP OFFERING 15 POINTS AND BRAINIEST~
    6·1 answer
  • A sphere has diameter 28 cm. If the diameter is divided by 2, what is the effect on the surface area?
    14·1 answer
  • I need to know the answer
    14·1 answer
  • I'd really appreciate it if you'd help! :)
    15·1 answer
  • A college basketball team offers season passes for $85.00, but you pay $4.45 for a program at each game. Non-season-pass holders
    15·1 answer
  • How many terms are in the expression?<br><br> 4x + 3y + 7z + 5<br><br> I need help ASAP!
    15·2 answers
  • Plz help with this asap thanks
    7·1 answer
  • EFGH after a rotation 180° clockwise around the origin.
    8·1 answer
  • What is the slope of the line shown below?
    15·2 answers
  • Someone pls help me I will make you as brain
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!