The claim is that the IQ scores of statistics professors are normally distributed, with a mean less thanless than 122122. A sample of 2727 professors had a mean IQ score of 119119 with a standard...

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The claim is that the IQ scores of statistics professors are normally distributed, with a mean less thanless than 122122. A sample of 2727 professors had a mean IQ score of 119119 with a standard...

Sylvia teaches music to 63 students who are under 10 years of age. The students under 10 years of age make up 35% of all her music students. How many students does Sylvia teach music?

a telephone company needs to run a wire from the telephone pole across a street to the new house....how many rolls of wire are needed TRIG questions

x2-6x-41=0

At a recent power lifting meet, Jake bench-pressed 25 pounds more than his best friend’s lift. Altogether the guys lifted 485 pounds.

the maker of a computer chess game claims the game can beat a human chess champion 35& of the time. A human chess champion plays ten games against the computer. Assuming the manufactures claim...

A company's monthly sales, in thousands, is given by s(x,y)=9x^.8y^.5. where x is the amount spent on newspaper advertising per month in thousands of dollars and y is the amount spent on radio advertising...

Wolfrich lived in Portugal and Brazil for a total period of 14 months in order to learn Portuguese.He learned an average of 130 new words per month when he lived in Portugal, and an average of 150...

David is twice as old as Mark. Nine years ago, David was three times as old as Mark was then. How old is David in years? Thanks!

andrea donates a total of $2,000 per year to her local college. this year she wants the amount she donates for liberal arts to be nine times the amount she donates for scholarships for business. determine...

probability, statistics

need help with geometry

a lunar rover traveled 7.65 miles per hour for 3.9 hours. How far did it travel?

When you have a receptive Standard Score of 50 and and Expressive score of <50 what is the sum

Need help with geometry

If not, when would linear dependency imply coplanarity?

Why does ((4^x In 4)x^4 - 4^x 4x^3) / x^8 = (x^3 4^x (x In 4- 4)) / x^8)? It says that in my book and i don't understand how to get to that. Thank you very much guys

Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number. The graph shows the number of people in Country A without health insurance...

What is the constant of variation, k, of the direct variation, y = kx, through (–3, 2)

At a party of 100 people where half are women and half love chocolate Jack says that if you choose someone at random the theoretical probability of a women who loves chocolate is exactly 1/4 . ...