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2 years ago

PLEASE HELP !! What is mean, meadian &mode

Mathematics

2 answers:

andreev551 [17]2 years ago

6 0

Answer:

mean- add the #'s all up and then divide by how many there are.

Median- the middle number but if there in between a number add them two numbers up the divide by 2

Mode - the most seen number

ale4655 [162]2 years ago

3 0

Mean is the average of a data set, which can be found by adding up all the data values and then dividing the sum by the amount of data values.

Median is the middle number of a data set. It is found by ordering the values from least to greatest and then finding the middle number. If there is an even amount of values, the mean of the two middle numbers must be found.

Mode is the number that appears most frequently in the data set.

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2 years ago

If there are 52 cards in a deck with four suits (hearts, clubs, diamonds, and spades), how many ways can you select 5 diamonds a

Luba_88 [7]

Answer:

$12C5 *(12C3) = 792*220 =174240 ways$

Step-by-step explanation:

For this case we know that we have 12 cards of each denomination (hearts, diamonds, clubs and spades) because 12*4= 52

First let's find the number of ways in order to select 5 diamonds. We can use the combinatory formula since the order for this case no matter. The general formula for combinatory is given by:

$nCx = \frac{n!}{x! (n-x)!}$

So then 12 C5 would be equal to:

$12C5 = \frac{12!}{5! (12-5)!}=\frac{12!}{5! 7!} = \frac{12*11*10*9*8*7!}{5! 7!}= \frac{12*11*10*9*8}{5*4*3*2*1}=792$

So we have 792 was in order to select 5 diamonds from the total of 12

Now in order to select 3 clubs from the total of 12 we have the following number of ways:

$12C3 = \frac{12!}{3! 9!}=\frac{12*11*10*9!}{3! 9!} =\frac{12*11*10}{3*2*1}=220$

So then the numbers of ways in order to select 5 diamonds and 3 clubs are:

$(12C5)*(12C3) = 792*220 =174240 ways$

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2 years ago