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tino4ka555 [31]
3 years ago
10

Math question (working too, if possible)

Mathematics
2 answers:
inessss [21]3 years ago
4 0
4/15 of the Primary School chose chicken nuggets.
TiliK225 [7]3 years ago
3 0
Add the fractions that chose fish fingers and burgers, then subtract that sum from 1.

Fish fingers: 2/5

Burgers: 1/3

Sum of fish fingers and burgers fractions:

2/5 + 1/3 

Common denominator = 15

2/5 * 3/3 + 1/3 * 5/5 = 6/15 + 5/15 = 11/15

Now we subtract 11/15 from 1.

1 - 11/15 = 1/1 * 15/15 - 11/15 = 4/15

The fraction that chose chicken nuggets is 4/15.
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The dot plot below shows the number of cakes 31 chefs made in a week: Dot plot labeled Number of Cakes Made shows 4 dots over 1,
Paraphin [41]
The median, because the data is not symmetric and there are outliers is the data is not symmetric and there are outliers.

The median of the data set is 8 cakes, while the average is 7.5.

However, 21 of the 31 chefs, or roughly 2/3, made 8 or more cakes. This makes the median a better center for this data, since the data is clearly skewed. The four chefs that made 1 cake each brings the average down, skewing the mean and making the median a better representation of the data. 
8 0
2 years ago
Read 2 more answers
A researcher is interested in determining if the more than two thirds of students would support making the Tuesday before Thanks
klio [65]

Answer:

a. p = the population proportion of UF students who would support making the Tuesday before Thanksgiving break a holiday.

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they are in favor of making the Tuesday before Thanksgiving a holiday, or they are against. This means that we can solve this problem using concepts of the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

So, the binomial probability distribution has two parameters, n and p.

In this problem, we have that n = 1000 and p = \frac{700}{1000} = 0.7. So the parameter is

a. p = the population proportion of UF students who would support making the Tuesday before Thanksgiving break a holiday.

8 0
3 years ago
Shadow Software company earned a total of 800,009 selling programs during the year 2012. 125,300 of taht amount was used to pay
Softa [21]
Subtract 125,300 from 800,009. From there you find that they made 674,709 in profit. Answer is 674,709
6 0
3 years ago
If x^2=20, what is the value of x?
JulsSmile [24]

Answer:

x = 2√5 and x = - 2√5

Step-by-step explanation:

x^2 = 20

x = 2√5 and x = - 2√5

5 0
3 years ago
Read 2 more answers
What is 4x to the power of 2 - x = 18 in standard form
Marianna [84]

Recall that exponents are a way of representing repeated multiplication. For example, the notation 54 can be expanded and written as 5 • 5 • 5 • 5, or 625. And don’t forget, the exponent only applies to the number immediately to its left, unless there are parentheses.

What happens if you multiply two numbers in exponential form with the same base? Consider the expression (23)(24). Expanding each exponent, this can be rewritten as (2 • 2 • 2) (2 • 2 • 2 • 2) or  2 • 2 • 2 • 2 • 2 • 2 • 2. In exponential form, you would write the product as 27. Notice, 7 is the sum of the original two exponents, 3 and 4.

What about (x2)(x6)? This can be written as (x • x)(x • x • x • x • x • x) = x • x • x • x • x • x • x • x  or x8. And, once again, 8 is the sum of the original two exponents.

3 0
3 years ago
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