Question

0 Groups of people aged 15-65 are randomly selected and arranged in groups of six. In the accompanying table, the random variable x is the number in the group who say that their family and/or partner contribute most to their happiness (based on a survey). Click the icon to view the data. More Info Х If the table is a probability distribution, what is its mean? Select the correct choice below and fill in any and OA. Its mean is P(x) (Round to one decimal place as needed.) OB. The table is not a probability distribution 0.198 If the table is a probability distribution, what is its standard deviation? Select the correct choice below and 0.206 O A. Its standard deviation is). (Round to one decimal place as needed.) OB. The table is not a probability distribution Done 0 1 0+ 0.014 0.015 2 3 4 5 6 0.287 0.282 Print

Answer 1

Solutions 16* a mean it is a probability cartributen then P(x) 4p(:1) 4p(* »2) 4p(x + x) + P(xou) + p(***) 4p(x)- 0+ 0.014 + 0.015 + 0.116-40.206-40.281 +0.282 =1 probability duchowton Ixxpa) Coyo) + (1x0.014) + (2x0.01s ) + (2x0.196) + luxo.206) + (5 40.287) + (cx0.282) 0+ 0.014 + 0.03 + 0.588 f 0.824 4 1.435 € 1.692 4.583 4.6 Σχ mean = 4.6 b) standard deviation is Ex*xp(x) (0²x0) + (12 Xably) +(2x0.015) + (3280.190) + (42 x 0.206) + (52% 0.287) + (62 X 0, 282 32) Of Doolu + 0.06 + 1764 + 3.296 € 7.175 + 10.152 22.461 22.5