Jackson flipped a coin ten times. he flipped heads 4 times and tails 6 times. what is the experimental probability that jackson will flip heads on his next flip?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20