Of all the trees planted by a landscaping firm, 45% survive. what is the probability that 13 or more of the 15 trees they just planted will survive

ANSWER:  

The probability for 13 or more of the 15 trees they just planted will survive is 0.00110702414

SOLUTION:

Given,

The total number of plants is, n=15

The chance of survival of trees is, p=45%.  

Probability of getting success p(success) =

P(success) =

P(success) = 0.45

Binomial distribution formula is given as

In our case, x is greater than or equal to 13, i.e. x 13

The probability for 13 or more of the 15 trees they just planted will survive is given by

+ +

on simplification we get

=0.00098554703 + 0.0001151938 + 0.00000628329

= 0.00110702414

Hence, the probability for 13 or more of the 15 trees they just planted will survive is 0.00110702414

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step-by-step explanation:

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it's 100

step-by-step explanation:

22, 28, 34, 40, 46

b)   f(n) = 6n + 16

  n = what is the number of the row ( 22 would be row 1) so if we replaced n with 1, we would get 22

c)   the  14th  row will have 100 seats

(1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)   (10) (11) (12) (13) (14)

22 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 | 100

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