Ms Greenaway sells mangoes at a roundabout in her town. On any given day, the probability of Ms Greenaway selling 0 mangoes is 0.1, the probability of Ms Greenaway selling 1 mango is 0.7 and the...

Ms Greenaway sells mangoes at a roundabout in her town. On any given day, the probability of Ms Greenaway selling 0 mangoes is 0.1, the probability of Ms Greenaway selling 1 mango is 0.7 and the probability of Ms Greenaway selling 2 mangoes is 0.2.

(a) Construct the probability distribution table for Ms Greenaway’s mango sales.

(b) Calculate Ms Greenaway’s expected daily mango sales and the standard deviation of Ms

Greenaway’s daily mango sales.