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mariarad [96]
3 years ago
10

A local university wanted to understand what students prefer to eat during finals. They asked 1000 students, "Do you prefer chic

ken, burgers, or pizza?" The results of the survey are shown in the two-way table below:
Chicken Burgers Pizza
Male 127 218 125
Female 219 192 119


What is the probability that a person chosen at random from this survey prefers pizza given that they are female? Round your answer to the nearest tenth.
Mathematics
1 answer:
olga55 [171]3 years ago
8 0

Answer:

P(\text{Pizza}\ |\ \text{Female})=0.225

Step-by-step explanation:

The two-way frequency table is attached below.

We have to calculate the probability of, a person chosen at random prefers pizza given that they are female, i.e P(\text{Pizza}\ |\ \text{female})

This is a conditional probability.

We know that,

P(A\ |\ B)=\dfrac{P(A\ \cap\ B)}{P(B)}

So,

P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}

From the table,

P(\text{Pizza}\ \cap\ \text{Female)}=\dfrac{119}{1000}

P({\text{Female}})=\dfrac{530}{1000}

Putting the values,

P(\text{Pizza}\ |\ \text{Female})=\dfrac{P(\text{Pizza}\ \cap\ \text{Female)}}{P({\text{Female}})}=\dfrac{\frac{119}{1000}}{\frac{530}{1000}}=0.225

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The diameter of a circle is 38 in. Find its area to the nearest whole number.
nikklg [1K]

Answer:

1134

Step-by-step explanation:

Formula for diameter=2 x r

(π is 3.14)

Formula for area= π x r^2

So all you basically have to do is go backwords with the first one then plug the radius into the second one normally

38/2=19

Now just plug it into your second equation

π x 19^2=1134.11494795

And lastly round that to 1134, easy! :)

5 0
2 years ago
Coach Withrite can bench press 325 lbs. How many kg can he bench?
puteri [66]

Answer:

147.18 Kgs

Step-by-step explanation:

1 Kg= 2.2 lbs

325/2.2=kg

147.18 Kgs

<em>Hope his helped! Have a good day!</em>

<em>All rewards appreciated!</em>

6 0
2 years ago
4. El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o
ira [324]

Answer:

Juan imprimió 7 páginas a color.

Step-by-step explanation:

Llamemos "b" a las copias en blanco y negro y "c" a las copias en color.

Juan imprimió 75 páginas. En forma simbólica es:

b + c = 75  

b = 75 - c   [1]

El costo de impresión de cada página en una biblioteca es de 5 centavos si es en blanco y negro o  50 centavos si es a color. En total pago $6.90. En forma simbólica es:

0.05b + 0.5c = 6.90   [2]

Si reemplazamos [1] en [2],

0.05(75-c) + 0.5c = 6.90

3.75 - 0.05c + 0.5c = 6.90

0.45c = 3.15

c = 7

Juan imprimió 7 páginas a color.

4 0
2 years ago
Use distributive property to model the product on the grid. .record the product 4*12=48
Darina [25.2K]
(2+2) * (6*2) = 4*12 = 48
4 0
3 years ago
What is the end behavior of the graph of the polynomial function f(x) = –x5 + 9x4 – 18x3?
Oksanka [162]

Answer:

As x approaches ∞, y approaches -∞

As x approaches -∞, y approaches ∞

Step-by-step explanation:

f(x) = -x^5 + 9x^4 - 18x^3

F(x) is a fifth degree (odd function ) with negative leading coefficient

If exponent is odd and leading coefficient is negative then end behavior is

As x approaches ∞, y approaches -∞

As you go on the right , f(x) goes down

As x approaches -∞, y approaches ∞

As you go on the left , f(x) goes up

7 0
3 years ago
Read 2 more answers
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