researcher with A. C. Nielsen wanted to determine the number of television sets in households. He conducts a survey of 40 randomly selected households and obtains the following data: 1 1 4 2 3 3 5 1 1 2 2 4 1 1 0 3 1 2 2 1 3 1 1 3 2 3 2 2 1 2 3 2 1 2 2 2 2 1 3 1 a. Estimate the mean number of televisions in a household. b. Estimate the variance of the number of televisions in a household. c. Estimate the standard deviation of the number of television in a household.

15

step-by-step explanation:

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

answer: what are the following choices

it is 10.6 according to my calculations