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Bogdan [553]
2 years ago
10

Answer my question Please I need it right away

Mathematics
1 answer:
lana66690 [7]2 years ago
3 0

Answer:

the mean of the data is 13, so the result is given by the sum of all data (11+12+13+14+15) and divided by 5

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Each newborn baby has a probability of approximately 0.49 of being female and 0.51 of being male. for a family with four childre
Alexxandr [17]

I believe this problem has 3 questions:

a. Explain why the three conditions are satisfied for X to have the binomial distribution.

b. Identify n and p for the binomial distribution.

c. Find the probability that the family has two girls and two boys.

 

Answers:

a. First because there are only 2 possible outcomes for each birth: male or female. Hence a binomial distribution. <span>
Second, because the probability of giving out a girl is constant: 0.49 for each birth. 
Third, the probability of a giving out a girl does not depend on whether or not there is already a boy or a girl in the family. </span>

b. The n is the total number of children, so n = 4

While the p is the success of being a girls, so P = 0.49

c. We use the binomial probability equation:

P (X) = nCx * p^x * q^(n-x)

<span>P(X=2) = 4!/(2!2!) * 0.49^2 * 0.51^2 = 0.3747</span>

3 0
3 years ago
How fast is 11hp on a go-kart?
djyliett [7]
<span>i would say its like a 125cc engine so 50mph 45-55 mph if cart no more than 250 lb.s -m This is wrong. I have a 11 hp go kart and it is 388cc and so it goes alot faster. well engines have so many rpms so the size does not matter but you can gear a bigger engine to make it go faster</span>
7 0
3 years ago
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What is a possible number greater than or equal to 7?
BARSIC [14]

Answer:

8,7,11,7.5,10000 any number that is 7, or bigger!

Step-by-step explanation:

7 0
3 years ago
The graph of a line gets _____ as the absolute value of the slope gets bigger.
Usimov [2.4K]
The slope of a line is defined as rise by run i.e. how much y value changes with respect to the change in x value. So the slope gives the steepness of the line.

Slope 0 indicates there is no change in y when the x value is changed and so the line with slope 0 is a horizontal line. A line with slope 1 shows with 1 unit change in x, y changes by 1 unit. Likewise slope equal 2 indicates with 1 unit change in x, y changes by 2 units.

We can see as the absolute value of slope is increasing, the change in y with respect to x is increasing i.e. the line is becoming more tilted or steep.

Hence, we can conclude that:
The graph of a line gets Steeper as the absolute value of the slope gets bigger.
C is the correct answer.
6 0
3 years ago
Read 2 more answers
a woman walks in and steals 100 from a register. 5 minutes later uses the same 100 to buy merchandise from that same store and b
murzikaleks [220]
She took 100, the store has       - 100
she went back and bough
70 bucks in stuff, the store has - 70

yes, she took the $100 bill and gave it, got back $30, that means she only kept $30 from the original bill.

the store however, lost the original $100 bill plus the $70 in merchandise, so they have -$170.
5 0
3 years ago
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