3 years ago

A and B are independent events. P(A) = 0.80 and P(B) = 0.10. What is P(A and B)?

Mathematics

2 answers:

Crank3 years ago

7 0

Answer: 0.08

Step-by-step explanation:

Misha Larkins [42]3 years ago

5 0

Answer: C. .08

Step-by-step explanation:

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AURORKA [14]

Answer:

Step-by-step explanation:

You just count the dots and check the tables.

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3 years ago

What does n equal in 2(n+5)=-2

KonstantinChe [14]

1. 2n + 2*5 =2
2. 2n + 10 = 2
3. 2n = 2 -10
4. 2n= -8
5. n = -8/2
6. n = -4

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3 years ago

last week you sold 30,45,50,75 and 80 units each day of the week in that order . On average how many units did you sell per day?

Butoxors [25]

Answer:

56 units

Step-by-step explanation:

add all numbers then divide by 5

30+45+50+75+80 = 280

280/5 = 56

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3 years ago

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Goryan [66]

Honestly I don’t even know

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3 years ago

Milk is a good source of many vitamins that can help us stay healthy. FDA recommends that the average vitamin A concentration fo

Lelechka [254]

Answer:

The degrees of freedom for this sample are 27.

The sample size to get a margin of error equal or less than 0.3656 is n=4450.

Step-by-step explanation:

The degrees of freedom for calculating the value of t are:

$df=n-1=28-1=27$

With 27 degrees of freedom and 95% confidence level, from a table we can get that the t-value is t=2.052.

The sample size to get a margin of error equal or less than 0.3656 can be calculated as:

$MOE=t\cdot s/\sqrt{n}\\\\n=\left(\dfrac{t\cdot s}{MOE}\right)^2=\left(\dfrac{2.052\cdot 11.8841}{0.3656}\right)^2=66.7^2\\\\\\n=4449.13\approx4450$

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3 years ago