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ira [324]
3 years ago
5

A group of 625 students has a mean age of 15.8 years with a standard deviation of 0.6 years. The ages are normally distributed.

How many students are younger than 16.2 years? Express answer to the nearest student.
Mathematics
1 answer:
Tom [10]3 years ago
7 0
16.2-15.8/0.6=0.6667. Use normalcdf() to find the percentage from -999 to 0.6777 which is 0.7476*625=467
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Help would be good i dont know how to do this
Mila [183]

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5 0
3 years ago
What is the value of $12000 of principal earning 4.8% compounded annually for seven years?
ivanzaharov [21]
Okay. The formula for compound interest is P(1 + r)^t, with P = principal, r = percentage rate, and t = time in years. 4.8% is 0.048 in decimal form. We add 1 to that number to get 1.048. Because the amount of time compounded is 7 years, we raise 1.048 to the 7th power. 1.048^7 is 1.388445952. Do not delete this number from your calculator. Now, multiply that number by 12,000 to get 16,661.35142 or 16,661.35 when rounded to the nearest hundredth. There. The value after seven years is $16,661.35.
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4 years ago
What numbers are the number 928,489 divisible by
galina1969 [7]
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3 0
3 years ago
Read 2 more answers
A school band sold 30 raffle tickets, each labeled with a number from 1 to 30. One winning ticket will be drawn.
ziro4ka [17]
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6 0
3 years ago
1/4 as a whole number
Lana71 [14]

Answer:

0.25

Step-by-step explanation:

It cant become a whole number but it can become a decimal. In order for it to become a whole number such as 1 or 50.0 (you dont have to put the .0 if it has no numbers behind the decimals) you need to have a fraction with the denominator(bottom such as 15/<u>10</u>) smaller than the numerator (top such as <u>15</u>/10) like so 15/10

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