What quadrant would -5,-8 be placed

Customers are used to evaluate preliminary product designs. In the past, 95% of highly successful products received good reviews

Andrej [43]

Answer: The required probability is 0.615.

Step-by-step explanation:

Let A be the event that a product receives good reviews.

Let E₁ be the event that the product is highly successful.

Let E₂ be the event that the product is moderately successful.

Let E₃ be the event that the product is poor.

$P(E_1)=0.40\\\\P(E_2)=0.35\\\\P(E_3)=0.25\\\\P(A|E_1)=0.95\\\\P(A|E_2)=0.60\\\\P(A|E_3)=0.10$

(a) What is the probability that a product attains a good review.

So, it becomes,

$P(A)=P(E_1)P(A|E_1)+P(E_2)P(A|E_2)+P(E_3)P(A|E_3)\\\\P(A)=0.4\times 0.95+0.0.35\times 0.6+0.25\times 0.1\\\\P(A)=0.615$

Hence, the required probability is 0.615.

4 0

3 years ago

Mathias and Roman are discussing how to simplify the following expression: 7ba3+9a2-9(79a3b-59a2+2ab2). They are writing an equi

levacccp [35]

Answer:

Step-by-step explanation:

3 0

3 years ago

Given a sequence is defined by a first term of LaTeX: t_1=3t 1 = 3, and explicit definition LaTeX: t_n=\:4n-1t n = 4 n − 1, find

Debora [2.8K]

Answer:

$1) 15\: 2)(-4,-1,11,20,...)$

Step-by-step explanation:

1) To find the 4th term given the Explicit Formula, i.e. definition, just plug it in. The common difference according to question is 4, the 1st term is 3.

$t_{1}=3\\t_{n}=t_{1}+4(n-1)\\t_{n}=t_{1}+(n-1)d\\t_{4}=3+4(3)\\t_{4}=15$

2) For this another Sequence in Explicit definition we just need to plug it in:

$a_{n}=n^{2}-5\\a_{1}=1^{2}-5 \Rightarrow a_{1}=-4\\a_{2}=2^{2}-5\Rightarrow a_{2}=-1\\a_{3}=3^{2}-5\Rightarrow a_{3}=4\\a_{4}=4^{2}-5\Rightarrow a_{4}=11\\a_{5}=5^{2}-5\Rightarrow a_{5}=20\\(-4,-1,11,20,...)$

4 0

4 years ago

How do you know the number of part to divide a number line from 0 to 1 into when comparing fractions

Katyanochek1 [597]

To compare fractions you need a common denominator, then you can make a comparison. You would divide the number line between 0 and 1 (or any 2 whole numbers on the number line) based on that common denominator. For example... if you were trying to compare 3/4 and 2/8, you would find the common denominator (in this case 8) and convert the fractions...

3/4 = 6/8
2/8 stays as 2/8

Now you would go to the number line between 0 and 1 and divide it into 8 equal pieces. 3/4 would go over the 6th division and 2/8 would go over the second division.

That would give you a good visual that 2/8 < 3/4

[ / / / / / / / ]

0 2/8 3/4 1

4 0

4 years ago

Which of the following is a Composite Number?

adoni [48]

61 is the composite Number your welcome

5 0

4 years ago

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