(PLEASE HELP THIS IS DUE IS 20 MINUTES, THERES ALSO TWO QUESTIONS)

Mathematics

1 answer:

xxMikexx [17]4 years ago

7 0

Answer:1. 3 inches

Step-by-step explanation:1 inch =2ft 2x3=6

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A pencil is 23 centimeters long is a ruler is 14 cm shorter what is the length of the ruler

Mamont248 [21]

Answer:

Step-by-step explanation:

subtract 14 from 23 to get 9

3 0

3 years ago

Rewrite the equation below in standard form.

eduard

Rewrite the equation below in standard form.
-3x+6y=12

C. -x+2y=4

if you take each term and divide them by 3 you will get the c

3 0

3 years ago

32% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and a

Tems11 [23]

Answer:

a) $P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211$

b) $P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668$

c) $P(2 \leq x \leq 5)=0.211+0.264+0.218+0.123=0.816$

Step-by-step explanation:

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=10, p=0.32)$