4x=25x+2y=136x²-3x=165x³-x²+2=0son ecuaciones cuadraticas o no?
1 answer:
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Answer:
20 people
Step-by-step explanation:
well we know that only going to the restaurant every person must pay $7
so we have only $3 extra
those 3 dollars times the number of people must give 60 dollars
so 20 people must go, to pay only $10
Answer:
a)0.2240
b)0.5768
Step-by-step explanation:
Given:
µ=3
Poison probability is given by :
a) Evaluating at k=3
b)Evaluating at k=0,1,2:
Use complement rule:
P(x≥3)= 1 - f(0) - f(1) - f(2)= 1- 0.0498 - 0.1494 - 0.2240 =0.5768