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notsponge [240]
3 years ago
9

In the context of this null hypothesis, determine the standardized statistic from the data where of kissing couples leaned their

heads right. ​Hint: You will need to get the standard deviation of the simulated statistics from the null distribution.
Mathematics
1 answer:
GalinKa [24]3 years ago
7 0

is it a multiple choice?

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A1,a2,a3....a30-each of these 30 sets has 5 elements.b1,b2,....bn-each of these n sets has 3 elements.union of a1,a2...a30=union
zzz [600]
 the number of elements in the union of the A sets is:5(30)−rAwhere r is the number of repeats.Likewise the number of elements in the B sets is:3n−rB
Each element in the union (in S) is repeated 10 times in A, which means if x was the real number of elements in A (not counting repeats) then 9 out of those 10 should be thrown away, or 9x.  Likewise on the B side, 8x of those elements should be thrown away. so now we have:150−9x=3n−8x⟺150−x=3n⟺50−x3=n
Now, to figure out what x is, we need to use the fact that the union of a group of sets contains every member of each set.  if every element in S is repeated 10 times, that means every element in the union of the A's is repeated 10 times.  This means that:150 /10=15is the number of elements in the the A's without repeats counted (same for the Bs as well).So now we have:50−15 /3=n⟺n=45
5 0
3 years ago
Let A = {1, 2, 3, 4, 5} and B = {2, 4}. What is A ∩ B? (1 point)
Rainbow [258]

Answer:

{2, 4}

Step-by-step explanation:

Intersection is the elements that two or more sets have in common. In A and B, they share {2, 4} in common.

5 0
3 years ago
Read 2 more answers
Patrick picked two numbers. The first number has 7 hundreds, 0 tens, and 0 ones. The second number has 2 fewer hundreds than the
pshichka [43]

Answer:

500 and 700

Step-by-step explanation:

It says '7 hundreds' referring to 700. and it then say the second number has 2 fewer, two fewer hundreds is 200. so the two numbers are 500 and 700.

8 0
3 years ago
Deirdre plotted a point D in Quadrant IV. After she reflected the point across an axis, the reflection was in Quadrant III. Give
Lostsunrise [7]
It depend on what d was. anything in Q3 can work for the reflection and both x and y are negative, you can say that for sure. for the actual point D, anything in Q4. in Q4 x is positive and y is negative. if d is (3,-3) then it's reflection is (-3,-3)
8 0
3 years ago
There are 7 days in 1 week. Some months consist of 30 days. How many weeks are there in 280 days.
notsponge [240]
There are 40 weeks in 280 days
3 0
3 years ago
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