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pogonyaev
3 years ago
13

I need help with this question. ​

Mathematics
1 answer:
Gnoma [55]3 years ago
8 0

Answer:

Step-by-step explanation:

P(female | junior)     *the | just means "given"*

In order to find this, you must know the formula:

P(A | B) = \frac{P(A and B)}{B}

So first, you have to find P(female and junior):

P(female and junior) = 6

Then, you just identify P(junior):

P(junior) = 2 + 6 = 8

Therefore, P(female | junior) = 6/8 (or 3/4), or 75%

Hope I helped!

You might be interested in
There are 130 people in a sport centre.
Mashcka [7]

Answer:

<h2>7/130</h2>

Step-by-step explanation:

Using set notation to answer the question. let:

n(U) be the total people in a sport centre =130

n(G) be number of people that use the gym.  = 76

n(P) be number of people that use the swimming pool. = 60

n(T) be number of people that use the track = 32

n(G∩P) be number of people that uses the gym and the pool = 23

n(P∩T) be number of people that uses the  pool and the track = 8

n(G∩T) be number of people that uses the gym and the track = 320

n(G∩P∩T) be number of people that uses all three facilities = 6

Using the relationship below;

n(U)= n(GUPUT)+n(GUPUT)'

where n(GUPUT)' is the number of people that doesn't use any facility.

Before we can get that, we need to know n(GUPUT) using the formula;

n(GUPUT) = n(G) + n(P)+n(T)-n(G∩P)-n(P∩T)-n(G∩T)+n(G∩P∩T)

n(GUPUT) = 76+60+32-23-8-20+6

n(GUPUT) = 123

n(GUPUT)' = n(U)- n(GUPUT)

n(GUPUT)' = 130 - 123

n(GUPUT)' = 7

This means that 7 person doesn't use any facility.

Probability that a person selected at random doesn't use any facility = n(GUPUT)' /n(U) = 7/130

3 0
3 years ago
If there are 16 cups in one gallon, how many cups are there in 3 gallons? How many cups are in 5 gallons? Total points with expl
Zigmanuir [339]
If there are 16 cups in one gallon, each gallon u add 16. If you have 3 gallons you add 16 3 times. So to get your answer you multiply 16 by three which is 48 cups.
6 0
3 years ago
Read 2 more answers
Classify each of the following as nominal, ordinal, interval, or ratio data.
Marina CMI [18]

Answer:

(a) The ranking of a company in the Fortune 500. Ordinal

(b) The number of tickets sold at a movie theater on any given night.   Ratio

(c) The identification number on a questionnaire.  Nominal

(d) Per capita income.  Ratio

(e) The trade balance in dollars.  Ratio

(f) Profit/loss in dollars.  Ratio

(g) A company’s tax identification.  Nominal

(h) The Standard & Poor’s bond ratings of cities Ordinal

Step-by-step explanation:

Nominal, ordinal, interval, or ratio data are the four fundamental levels of measurement scales that are used to capture data.

Nominal scales are used for labeling variables, without any quantitative value.

Ordinal the order of the values is what is significant, but the differences between each one is not really known.

Interval we know both, the order and the exact differences between the values

Ratio data they have the order, the exact value between units, and have an absolute zero

7 0
2 years ago
36 is 75% of what number
g100num [7]
Learn this and it can answer all ur percent problems
percent formula : is/of = %/100

36 is 75% of what number...
is = 36
% = 75
of = x.....because that is what u are looking for.
now sub into the percent formula

is/of = %/100
36/x = 75/100
cross multiply because this is a proportion
75x = 36(100)
75x = 3600
x = 3600/75
x = 48

so 36 is 75% of 48
3 0
3 years ago
Please help me ASAP thank you
Marianna [84]

Answer:

Step-by-step explanation:

8 0
3 years ago
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