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olga_2 [115]
3 years ago
13

a magazine contains fourteen pages. You open to a random page, the page number is three or seven..... where do i start i need to

show work
Mathematics
2 answers:
UkoKoshka [18]3 years ago
6 0
This is a question of randomness so there really is no answer. I would guess 7 since that is the center page and you're more likely to open it up in or near the middle
timofeeve [1]3 years ago
4 0
The possibility to open to page seven is 75% percent. The possibility of opening to page 3 is about 25%
Our human body will order us to open to the middle page without us realizing unless we are looking and know which random page we want.
Due to the lack of information of the questions there is not much be said or to answer in  any case. 

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A bank's loan officer rates applicants using their FICO credit score. The ratings are normally distributed with a mean of 711 an
tekilochka [14]

Answer:

The answer is "778"

Step-by-step explanation:

Given value:

\to \mu= 711\\\\\to \sigma= 80\\\\\to P(Z >0.84) = 0.20\\\\\to z = 0.84

The formula for z-score:

\to x = z \times  \sigma + \mu \\\\\to x = 0.84 \times 80 + 711 \\\\ \to x=67.2 +711\\\\ \to x=  778.2\\\\ \to x= 778

6 0
3 years ago
How many square metre of carpeting are needed to cover a floor that measures 8m by 5m​
grigory [225]

Answer:

40 meters squared

Step-by-step explanation:

8 * 5 = 40

5 0
3 years ago
1. An AP Statistics class starts a project to estimate the average number of hours a student at their high school sleeps per nig
Aleks [24]

Answer:

(C) Sample: the 120 students surveyed. Population: the 1200 students at the high school. Parameter of interest: the average number of hours a student at this high school sleeps per night.

Step-by-step explanation:

The correct answer is (C). The sample is a subset of the population, and the parameter is a characteristic of the population of interest.

6 0
3 years ago
The maximum weight of a suitcase that an airline allows is 50 pounds. For every 1 pound, there is approximately 0.45 kilograms.
Marta_Voda [28]

Answer: 22.5 kg

Step-by-step explanation:

You did not attach a question, so I'm going to assume that it is asking for the maximum weight of a suitcase in kilograms.

3 0
2 years ago
Suppose that only 25% of all drivers come to a complete stop at an intersection having flashing red lights in all directions whe
Juliette [100K]

Answer:

X \sim Binom(n=15, p=0.25)

For this case we can use the probability mass function and we got:

P(X= 5) = (15C5) (0.25)^{5} (1-0.25)^{15-5}= 0.165

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

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".

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

Solution to the problem

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

X \sim Binom(n=15, p=0.25)

For this case we can use the probability mass function and we got:

P(X= 5) = (15C5) (0.25)^{5} (1-0.25)^{15-5}= 0.165

5 0
3 years ago
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