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3 years ago

How do you calculate median

1 answer:

6 0

Put all numbers in smallest to largest order
if there are an odd number of results, the median is in the middle
if there even, then its the mean of the two central numbers

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Of all the students that Mikey surveyed, 30% said they play baseball. If 21 students play baseball, how many students did Mikey

Ulleksa [173]

Answer:

70 students

Step-by-step explanation:

As, 30% Mike surveyed

And these 30% are 21 students

So 30% of X = 21

= 30/100 x X = 21

= 30X = 2100

So X = 2100/30

X = 70

So 70 students were surveyed

5 0

3 years ago

Fifty-five percent of the members of the junior varsity swim team wear glasses. Of the team memebers who do not wear glasses, 30

GarryVolchara [31]

the probability that a randomly chosen member of the JV swim team does not wear glasses and is in the 10th grade is 14%.

Given, the members of the junior varsity swim team wear glasses is 55%.

And the members of junior varsity swim team who do not wear glasses and in 10th grade is 30%.

Let the total no. of members be x.

So, the members of the junior varsity swim team wear glasses (55%),will be

$0.55x$ .

The total number of members not wearing glasses, will be

$x - 0.55 x = 0.45 x$ .

Now, the no. of members not wearing glasses and in 10th grade will be,

$\frac{0.45x\times30}{100} =0.135x$

We know that the probability of an event E, P(E) will be,

$P(E)=\frac{No.\ of Favourable\ outcomes}{total \ no. \ of \ outcomes}$

So, the probability for no. of members not wearing glasses and in 10th grade will be,

$P(E)=\dfrac{0.135x}{x}$

$P(E)=0.135\\\\P(E)=13.5 \%$

Hence the nearest whole percent of probability is 14%.

For more details on probability follow the link:

brainly.com/question/795909

8 0

2 years ago

you are moving to houston texas and are switching your cellular phone company. your new peak air time rate in houston is $.23 pe

Luda [366]

Add them so the answer will be 118.45

8 0

3 years ago

There are 14 females an 9 males what is the ratio of females to males

Romashka [77]

1 : .64 Since it is females to males you should divide the 9 males by 14 females to get 1 female equals x amount of males

4 0

3 years ago

Work out m and c for the line: y + 2 = 3 2.2

Serjik [45]

Answer:

m = 3 and c = 4.2

Step-by-step explanation:

y=mx+c

take the 2 on other side

7 0

2 years ago