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Elis [28]
3 years ago
11

Hi could you please help me

Mathematics
2 answers:
Eddi Din [679]3 years ago
8 0

Answer:

if their numbers is 96

and ratio is 9: 15 then

9×4: 15×4

36+60=96

I hope u understand

Fittoniya [83]3 years ago
4 0

Answer:

60 dogs

Step-by-step explanation:

Fraction of cats = 9/24

Fraction of dogs = 15/24

Total of animals = 96

Therefore, the number of dogs in the animal shelter will be:

15/24 x 96

=60

Hope this is right!

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dedylja [7]
A) Taken at a basketball championship, the sample must be considered to be biased—probably in favor of basketball. Any conclusion can only be applied to attendees polled at the championship.

b) If a conclusion is to be drawn about opinions of students at the school, then a method needs to be devised to obtain opinions from a random sample of students. Likely, care would need to be taken to ensure expressed opinions are not influenced by games scheduled or just concluded, or by other factors such as reported injuries. A random sample from a list of student ID numbers might be appropriate. The poll might need to be conducted between seasons.
6 0
3 years ago
Lianna is buying 10 apples for $6.50. What is the unit price per apple?
Snezhnost [94]

<u>Given</u><u> </u><u>:</u><u>-</u><u> </u> \sf Lianna\: buys \:10 \:apples\: for \:\$ 6.50 .

<u>To</u><u> </u><u>Find </u><u>:</u><u>-</u><u> </u> \sf The\: unit \:price \:of \:each\: Apple .

<u>Answer</u><u> </u><u>:</u><u>-</u><u> </u> Its given that cost of 10 apples is $6.50 .

So, by Unitary method , we can solve this ,

→ Cost of 10 apples is $ 6.50.

→ Cost of 1 apple will be \sf \dfrac{\$6.50}{10}

=\red{\bf \$0.65}

<u>Hence</u><u> the</u><u> required</u><u> answer</u><u> </u><u>is</u><u> </u><u>$</u><u>0</u><u>.</u><u>6</u><u>5</u><u>.</u>

6 0
4 years ago
Out of 139 seventh graders 86 voted math as their favorite subject. What percent is this
Anestetic [448]
86/139*100%= 61.87%

The final answer is 61.87%~
3 0
4 years ago
Find the expected value of the winnings from a game that has the following payout probability distribution. Round to the nearest
Luda [366]
Expected value is $20.20
Step-by-step explanation:
Here, we want to calculate the expected value
What we have to do here is to multiply the probability by the payout value; after which we add all values
Thus, we have the payout value as;
1(0.12) + 4(0.2) +6(0.38) + 8(0.2) + 10(0.1)
= 0.12 + 0.8 + 2.28 + 1.6 + 1
3 0
3 years ago
Read 2 more answers
If A and B are independent events with P(A) = .5 and P(B) = .2, find the following:a) P(A U B)b) P(A^c ? B^c)c) P(A^c U B^c)**No
Effectus [21]

If A and B are independent, then P(A\cap B)=P(A)P(B).

a.

P(A\cup B)=P(A)+P(B)-P(A\cap B)=P(A)+P(B)-P(A)P(B)

P(A\cup B)=0.5+0.2-0.5\cdot0.2

\boxed{P(A\cup B)=0.6}

b. I'm guessing the ? is supposed to stand for intersection. We can use DeMorgan's law for complements here:

P(A^c\cap B^c)=P(A\cup B)^c=1-P(A\cup B)

P(A^c\cap B^c)=1-0.6

\boxed{P(A^c\cap B^c)=0.4}

c. DeMorgan's law can be used here too:

P(A^c\cup B^c)=P(A\cap B)^c=1-P(A\cap B)=1-P(A)P(B)

P(A^c\cup B^c)=1-0.5\cdot0.2

\boxed{P(A^c\cup B^c)=0.9}

4 0
3 years ago
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