Question

Another survey examines visitor's preferences in eating breakfast Eats Breakfast Eats Breakfasts (B) Doesn't Eat Breakfast (B) 450 test Adult (A) 1000 Child (C) 150 300 1450 450 1900 1150 Compute: P(BJA), [A] P(BC), [B] P(A or B). [C] P(C and B) [D] Is there any relationship between age (adult or child) and wanting to eat breakfast? [EJ

Answer 1

Breakfast Doesn't eat Breakfast Adult 1000 1450 1 450 Ichuld 150 300 450 11150 750 1 1900 / @ from the table. P(B/A) = P(AMB) PCA] but from the table - P(AMB) = 1000 = 10 1900 Thus PCBJA) = (eca) - :] - from the table Ple) = 45o = 45 - 2 1900 190 38 en :P (810) - Plane') PC) But from the table , PER P(CAB) = $300 = 36

thus PCB'lega ei 3438 جاتا بهار) PCA onk] = PAUD) - PCA) +P68) - PCAMB] But PCRO = 115o = 115 23 1900 190 38 PLAJ = 2006 PCANB) = 1000 =10 1900 ja . Thus P (AUB): PCA) + PC6) - P(ANG) - 38 & P (Cando = P(CMB) = 150 - 15 - 120 1900 190 38 l 19 Now P(AMB) = 0 + P(A) = P(B) so They are not independent o yes there is a relationship between them ...