3 years ago

Thomas took a practice test to study for a trivia game show. There were 65

Mathematics

1 answer:

Advocard [28]3 years ago

3 0

Answer:

110

Step-by-step explanation:

You might be interested in

Change 48 out of 60 to a percentage

velikii [3]

Answer:

80%

Convert fraction (ratio) 48 / 60 Answer: 80%

8 0

2 years ago

Read 2 more answers

From experience, it is known that on average 10% of welds performed by a particular welder are defective. if this welder is requ

bulgar [2K]

Binomial distribution can be used because the situation satisfies all the following conditions:1. Number of trials is known and remains constant (n)2. Each trial is Bernoulli (i.e. exactly two possible outcomes) (success/failure)3. Probability is known and remains constant throughout the trials (p)4. All trials are random and independent of the othersThe number of successes, x, is then given by $P(x)=C(n,x)p^x(1-p)^{n-x}$ where $C(n,x)=\frac{n!}{x!(n-x)!}$
Here we're given
p=0.10 [ success = defective ]
n=3

(a) x=0
$P(x)=C(n,x)p^x(1-p)^{n-x}$
$=C(3,0)0.1^0(1-0.1)^{3-0}$
$=1(1)(0.729)$
$=0.729$

(b) x=2
$P(x)=C(n,x)p^x(1-p)^{n-x}$
$=C(3,2)0.1^2(1-0.1)^{3-2}$
$=3(0.01)(0.9)$
$=0.027$

(c) x ≥ 2
$P(x)=\sum_{x=2}^3C(n,x)p^x(1-p)^{n-x}$
$=P(2)+P(3)$
$=C(n,2)p^2(1-p)^{n-2}+C(n,3)p^3(1-p)^{n-3}$
$=C(3,2)0.1^2(1-0.1)^{3-2}+C(3,3)0.1^3(1-0.1)^{3-3}$
$=3(0.01)(0.9)+1(0.001)1$
$=0.027+0.001$
$=0.028$

8 0

2 years ago

What should be done to both sides of the equation in order to solve w - 9 1/2 = 15? Add 15. Subtract 15. Add 9 1/2. Subtract 9 1

krek1111 [17]

You want to undo the (-9 1/2), so you will add 9 1/2 to each side

8 0

2 years ago

Read 2 more answers

Jack is practicing pitching with his team. He rotates pitching with his teammates after 12 pitches thrown. He has to throw at le

vitfil [10]

Step-by-step explanation:

4 0