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Semenov [28]
2 years ago
7

Jose has -75 points. He wins 200 points;then he loses 25 points. How many points does he have now?

Mathematics
2 answers:
Sav [38]2 years ago
3 0

Answer:

100 points

Step-by-step explanation:

-75 + 200 = 125

125 - 25 = 100

icang [17]2 years ago
3 0

Answer:

100

Step-by-step explanation:

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The total weight of 15 boxes is 45 pounds. How much would 40 boxes weigh? *
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Answer:

120 pounds

Step-by-step explanation:

15 boxes = 45 pounds

45/15= 3

1 box= 3 pounds

40 x 3 = 120

40 boxes would weigh 120 pounds

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The probability that a person in a certain town has brown eyes is 2 out of 5. A survey of 450 people from that same town was tak
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It could be c

Step-by-step explanation:

180

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Another name for Spherical Geometry is
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Another name for Spherical Geometry is (a.) Euclidean. <span>A sphere is not an </span>Euclidean<span> essentially, but the laws of this</span><span> geometry are close estimations.</span>
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3 years ago
In Illinois, 10 % of all drivers arrested for DUI (Driving Under the Influence) are repeat offenders; that is, they have been ar
docker41 [41]

Answer:

a) P(X=5) = 0.065

b) P(X≥1) = 0.928

c) The mean number of repeat offenders is 3.

d) The standard deviation of the number of repeat offenders is 2.

Step-by-step explanation:

n = 25

p = 10% = 0.10

q = 1-p

  = 1-0.1

q=0.9

a) Find P(X =5)

Using the binomial distribution formula:

P(X = x) = ⁿCˣ pˣ qⁿ⁻ˣ

where p = probability of success

           q = probability of failure

           n = total number of trials

           x = no. of successful trials

P(X=5) = ²⁵C₅ (0.1)⁵ (0.9)²⁵⁻⁵

           = 0.0645 ≅ 0.065

P(X=5) = 0.065

b) We need to find the probability that at least one person is a repeat offender which means at most there can be 25 repeat offenders hence, we need to compute the probability for all values ranging from 1 to 25. The easy way to solve this problem is to find out the probability of less than one repeat offender and then subtract the value from the total probability (i.e. 1).

   P(X≥1) = 1 - P(X<1)

              = 1 - P(X =0)

              = 1 - ²⁵C₀ (0.1)⁰ (0.9)²⁵⁻⁰

               = 1 - 0.072

   P(X≥1) = 0.928

c) The mean of the binomial distribution is:

         μ = np

So, the mean number of repeat offenders can be computed as:

μ = (25)(0.10)

μ = 2.5 ≅ 3

The mean number of repeat offenders is 3.

d) The standard deviation of the binomial distribution is:

   σ = √npq

So, the standard deviation of the number of repeat offenders can be computed as:

σ = √(25)(0.1)(0.9)

   = √2.25

σ = 1.5 ≅ 2

The standard deviation of the number of repeat offenders is 2.

7 0
2 years ago
When a child is born,
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Option 2 because in option one 7.5% of $300 is $22.50 so more would be put in if he chose the second option
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