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ss7ja [257]
2 years ago
6

Find the probability of having 2,3, or 4 successes in five trials of a binomial experiment in which the probability of success i

s 40%. Round to the nearest tenth of a percent. [ ? ]% ​
Mathematics
1 answer:
Georgia [21]2 years ago
6 0

Answer:

65.3%

Step-by-step explanation:

Binomial distribution PMF below (along with a description)

the probabilty of getting 2, 3, or 4 successes in 5 trials is just

p(2)+p(3)+p(4)

p(2)= 5C2*.4²*(1-.4)³ = .3456

p(3)= 5C3*.4³*(1-.4)²= .2304

p(4)= 5C4*.4⁴*(1-.4)=.0768

.3456+.2304+.0768= .6528

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Pachacha [2.7K]
-1/4 will be ration because all fractions are rational 

8 0
2 years ago
A recipe uses 7 parts of milk for every 5 parts of sugar how much sugar do you use when you use 28 cups of milk
stira [4]

Answer:

the answer is 20 cups of sugar

Step-by-step explanation:

7/28= 5/x

x= 20.

x reps the number of cups of sugar

7 0
2 years ago
SUPER EASY MATH PROBLEM IM JUST DUMB, WILL MARK BRAINLIEST. PLEASE HELP
worty [1.4K]

Answer:

m<1 = 105°

m<2 = 75°

very simple explanation:

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8 0
3 years ago
According to the graph, what is the experimental probability of selecting the letter E?
Daniel [21]

The experimental probability of letter E is: 3/25

Step-by-step explanation:

The given diagram is the number of outcomes for each letter is given

We have to find the total number of outcomes for finding the experimental probability of letter E

So,

Total outcomes = n(S) = 5+12+8+10+6+9 = 50

Number of outcomes for Letter E = n(E) = 6

So the experimental probability will be:

P(E) = \frac{n(E)}{n(S)}\\\\=\frac{6}{50}\\\\= \frac{3}{25}

Hence,

The experimental probability of letter E is: 3/25

Keywords: Probability, experimental probability

Learn more about probability at:

  • brainly.com/question/10610299
  • brainly.com/question/10688256

#LearnwithBrainly

7 0
2 years ago
Which equation is a linear equation?<br> y=2x2+3<br> y=2/x+3<br> y=2x+3<br> y=2x+3
Setler [38]
Y=2x+3 is a linear equation.
8 0
2 years ago
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