The brain volumes(cm3) of 50 brains vary from a low of 902 cm3 to a high of 1498cm3. using the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 174.4 cm3 assuming the estimate is accurate if its within 15cm3​ the estimated standard deviation is ?

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Which of the following statement about pascal's triangle are true?

Describe the domain and range of y=2(3)^x-2+5