The stem and leaf plot shows the number of minutes of television that 7 students watched last night. How many minutes of television did the 7 students watch last night all together? *

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

Aparachutist descends 38 in 2 seconds . express the rate of the parachutists change in height as a unit rate

2. a family eats at a restaurant. the bill is $42. the family leaves a tip and spends $49.77. a. how much was the tip in dollars? b. how much was the tip as a percentage of the bill?