The life of a battery used in a designer dog collar is assumed to be approximately normally distributed. A random sample of 10 such batteries is selected and placed on accelerated life test yielding the following results (measured in hours): 100 93 112 102 97 95 108 96 115 125 Use this data to complete Questions 1 - 4. Questions 1 - 4 are each worth 1 point. 1. Find the mean battery life. 2. Find the median battery life. 3. Find the variance for the battery life

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

replace   with   27   and simplify.

10 , 27 , 10 , 70 , 10 , 35 , 10 , 48

step-by-step explanation:

it would be a on edgenuit y

the diagram below is your final answer

the answer to question 1 is -8, 28.

step-by-step explanation: