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serious [3.7K]
3 years ago
7

What is the probability of choosing a red face card from a deck of cards?

Mathematics
1 answer:
zloy xaker [14]3 years ago
5 0
Number of red face cards =6
Total cards = 52
Therefore, probability =6/52 =3/26
=3:26
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You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95% confidence lev
Vikentia [17]

Answer:

865

Step-by-step explanation:

We have that in 95% confidence level the value of z has a value of 1.96. This can be confirmed in the attached image of the normal distribution.

Now we have the following formula:

n = [z / E] ^ 2 * (p * q)

where n is the sample size, which is what we want to calculate, "E" is the error that is 2% or 0.02. "p" is the probability they give us, 5 out of 50, is the same as 1 out of 10, that is 0.1. "q" is the complement of p, that is, 1 - 0.1 = 0.9, that is, the value of q is 0.9.

Replacing these values we are left with:

n = [1.96 / 0.02] ^ 2 * [(0.1) * (0.9)]

n = 864.36

865 by rounding to the largest number.

3 0
3 years ago
The radius of Venus is 3,760.4 miles. What is the approximate volume of Venus?
sdas [7]
The radius of a sphere is calculated through the equation,
                             V = 4πr³ / 3
where r is the radius. Substituting the radius given in the equation,
                            V = 4π x (3,760.4 miles)³ / 3 = 2.23 x 10^11 miles
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8 0
3 years ago
How to do this question
Tema [17]

Answer:

f(8) = \underline{5}

Step-by-step explanation:

We can see it on the given table of values.

6 0
3 years ago
Solve the right triangle.
Tom [10]
Solve using trigonometry
tan(39)=24/b
b=24/tan(39)
so b=29.6
for c…
sin(39)=24/c
c=24/sin(39)
c=38.1
4 0
2 years ago
How do you write: One third of the opposite of a number is less than 12?
Romashka [77]
-1/3n = -12 is the way you write it
5 0
3 years ago
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