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shtirl [24]
3 years ago
10

a card is chosen at random from a deck of 52 cards it is then replaced and a second card is chosen what is the probability of ge

tting a jack and then an eight
Mathematics
2 answers:
castortr0y [4]3 years ago
6 0
There are 4 jacks and 4 eights so with replacement:

P(Jand8)=(1/13)^2=1/169
Pachacha [2.7K]3 years ago
4 0
Their are 4 Jacks in a set of 52 cards so the probability to get a jack = 4/52=1/13 same for the eights

The cards was replaced then the total number of card is still 52. Now after selecting a Jack, you want to select an eight.

This is a conditional probability select a jack AND select an eight
P(Jack AND eight) = 1/13 x 1/13 - 1/169 = 0.006 or 0.6%
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In a sample of 800 U.S. adults, 218 dine out at a restaurant more than once a week. If two U.S adults are selected at random fro
andre [41]

Answer: 0.074

Step-by-step explanation:

Given : The total number of U.S. adults in the sample = 800

The number of U.S. adults dine out at a restaurant more than once a week = 216

The probability for an adult dine out more than once per week :-

\dfrac{218}{800}

If another person is selected without replacement ,then

Total adults left = 799

Total adults left who dine out at a restaurant more than once a week = 217

The probability for the second person dine out more than once per week :-

\dfrac{217}{799}  

Now, the probability that both adults dine out more than once per week :-

\dfrac{218}{800}\times\dfrac{217}{799}=0.074

3 0
3 years ago
Help! graph Y - 2 = -3/4 (X-6). please use the graph I provided
Fiesta28 [93]

A graph of this equation y - 2 = -3/4(x - 6) is shown in the image attached below.

<h3>What is a graph?</h3>

A graph can be defined as a type of chart that is typically used for the graphical representation of data on both the horizontal and vertical lines of a cartesian coordinate, which are the x-coordinate and y-coordinate.

Next, we would rearrange and simplify the given given equation in slope-intercept form in order to enable us plot it on a graph:

y - 2 = -3/4(x - 6)

Opening the bracket, we have:

y - 2 = -3x/4 + 18/4

y = -3x/4 + 18/4 + 2

y = -3x/4 - 26/4

y = -3x/4 - 13/2

Therefore, the slope is equal to -3/4 and the y-intercept is equal to -13/2.

In conclusion, we can logically deduce that the graph representing the given linear equation does not show a proportional relationship between the value of x and y.

Read more on graphs here: brainly.com/question/4546414

#SPJ1

3 0
1 year ago
Can someone please help me with this math problem:):)
katrin2010 [14]

Answer:

8.5 or 8  1/2

Step-by-step explanation:

3 0
3 years ago
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Do u have the answer? because I'm not sure

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(5-3.5)/0.15=10
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