(01.01 MC) The mean number of hours spent per day on the computer, according to a national
survey, is six hours, with a standard deviation of 2.5 hours. If each time was increased
by 1.5 hours, what would be the new mean and standard deviation? (2 points)
O 6,2.5
0 7.5,4
O 6,4
0 7.5, 2.5

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.