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kykrilka [37]
3 years ago
7

A standard deck of 52 playing cards contains 13 cards in each of four suits: diamonds, hearts, clubs, and spades. Two cards are

chosen from the deck at random. What is the approximate probability of choosing one club and one heart? 0.0588 0.0637 0.1176 0.1275
Mathematics
2 answers:
Maru [420]3 years ago
8 0

the right answer is 0.1275 just took the test

Lady_Fox [76]3 years ago
7 0

Answer:  Last option is correct.

Step-by-step explanation:

Since we have given that

Number of cards of clubs = 13

Number of cards of heart = 13

We need to take out 2 cards chosen from the deck that is one club and one heart.

Probability of choosing one club and one heart is given by

\frac{^{13}C_1\times ^{13}C_1}{^{52}C_2}\\\\=\frac{13\times 13\times 2\times 1}{52\times 51}\\\\=0.1275

Hence, Last option is correct.

You might be interested in
Find the equation of the line that has slope of 7 and passes through the point (-9,2).
lawyer [7]

Answer:

y=7x+65

Step-by-step explanation:

You want to find the equation for a line that passes through the point (-9,2) and has a slope of 7.

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was 7. So you can right away fill in the equation for a line somewhat to read:

y=7x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(-9,2). When x of the line is -9, y of the line must be 2.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: . b is what we want, the 7 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (-9,2).

So, why not plug in for x the number -9 and for y the number 2? This will allow us to solve for b for the particular line that passes through the point you gave!.

(-9,2). y=mx+b or 2=7 × -9+b, or solving for b: b=2-(7)(-9). b=65.

The equation of the line that passes through the point (-9,2) with a slope of 7

is

y=7x+65

Have a nice day!

5 0
2 years ago
What is the solution to log 25x = 3?​
MrMuchimi

\log(25x)=3\\10^3=25x\\25x=1000\\x=40

5 0
3 years ago
How do you find the median and standard deviation for 3,3,3,3,4,4,4,4,4,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,8,8,8,8,8,
Rashid [163]

Answer:

Median is 6

standard deviation is 2.39

Step-by-step explanation:

the median is the mid number in the data set

The median formula is {(n + 1) ÷ 2}th, where “n” is the number of items in the set and “th” just means the (n)th number.

There are 51 data points in this set (n = 51)

so 51 / 2 = 25.5, the. number in the 25th slot is our median

3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6,<u> 6</u>, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11

the standard deviation is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

7 0
2 years ago
Biscuits Betty uses 5 1/3
Aleonysh [2.5K]
Gabby's recipe calls for 3 1/3 pounds of flour. If you divide 3 1/3 by 1/6, you get 5 measuring cups full. (1/3 is 2/6 so you add 2+3)
7 0
3 years ago
Read 2 more answers
What is the perimeter of the figure to the nearest tenth of a millimeter
torisob [31]
The answer would be 18mm because 6+6+3+3 considering that there are 4 sides.
6 0
3 years ago
Read 2 more answers
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