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rjkz [21]
3 years ago
7

PLS HELP WILL GIFT 50+ POINTS TO THE FIRST PERSON WHO WILL ANSER ANSER AND EXPLAIN THROUGHLY PLZ HELP!!!

Mathematics
2 answers:
taurus [48]3 years ago
8 0

Answer: it is invalid

Step-by-step explanation: it is invalid because the data table has 30 out of 100 people stating that they prefer to view movies in theater. This does not have the same ratio as 300 out of 400, and would only work had he said 300 out of 1000. Thus, he is incorrect in his inference.

Arada [10]3 years ago
5 0
His answer is invalid
You might be interested in
Suppose that 16% of people have a dog. 32% of people have a cat, and 10% of people own both. What is the probability that someon
Julli [10]

Answer:

0.38

Step-by-step explanation:

Let the even that a person has a dog be A. The probability is given 16% this implies:

<em>P(A)</em> = 0.16 ..... (1)

Let the event that a person has a cat denote by B. The probability of B is given to be 32% this implies....  

<em>P(B</em>) = 0.32 ..... (2)

Then the event that a person has a dog and a cat will be denoted by A∩B. The probability of A∩B is given to be 10%: This implies:

<em>P(A∩B= = 0.12 .......(3)</em>

The event that someone owns a cat and a dog will denoted by the event <em>A∪B.</em> It is observed that A and B are not disjoint. This implies that the probability of this event is depicted as:

<em>P(A∪B) = P (A) + P(B) - P(A∩B)</em>

Substitute (1) , (2) and (3), in the above, we get:

<em>P(A∪B) = 0.16 + 0.32 - 0.10 = 0.38</em>

7 0
3 years ago
Each time Kristine gets paid, she spends $20 and saves the rest. If the amount Kristine earns is represented by x and the amount
kenny6666 [7]

Answer:

A graph titled Kristine's Savings has money earned on the x-axis and money saved on the y-axis. A line goes through points (20, 0) and (25, 5).

Step-by-step explanation:

If Kristine spends $20 and saves the rest when she gets paid, the amount she saves should always be 20 less than the amount she earned.

The points (20, 0) and (25, 5) accurately represent this, where x is how much she earns and y is how much she saves.

(20, 0) represents her earning $20 and saving $0, because she spends $20 every time she gets paid.

(25, 5) represents her earning $25 and saving $5, because she spent $20.

So, the correct graph is A graph titled Kristine's Savings has money earned on the x-axis and money saved on the y-axis. A line goes through points (20, 0) and (25, 5).

5 0
3 years ago
17.16 is 62.4% of what number?
Alex Ar [27]
First make the 62.4% as a decimal which is 0.624. Next you want to realize that the word "is" stands in place of an equal sign and the word "of" shows that you need to multiply. You can come up with the formula,

17.16 = 0.624x

and all you need to do is divide both sides by 0.624 and you get your answer.

x = 27.5
8 0
3 years ago
Read 2 more answers
What number makes the equation true?<br> 4= 36 :<br> PLZZZZZ HELP
babymother [125]

Answer:

9x4=36

Step-by-step explanation:

8 0
4 years ago
ASAPPP!!!!
natima [27]

Answer:

$22.50

Step-by-step explanation:

So if each topping cost 2.50 then just multiply by 9

3 0
3 years ago
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