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3 years ago

11

If 4 numbers of puppets are sharing 1 cake equally write a fraction to show what part of the cake 1 of those puppets will be eat

ing

2 answers:

fomenos3 years ago

7 0

1/4 because the cake is divided between 4 puppets

Wewaii [24]3 years ago

5 0

1/4 because there are 4 puppets and 1 cake so you put the 1 over the 4

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How would I show that the slope is constant (Topic is: Graphing Proportional Relationships and Defining Slope)

Marysya12 [62]

Answer:

Pick 3 or four points on the ray that land on a point (not (5.5, 2.5) more like whole numbers (3,3). These are just examples.)on the slope. Then find the slope of all points. if the answers are the same, then it is constant

Step-by-step explanation:

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3 years ago

The price of a computer was decreased by 7% to £500. What was the price before the decrease? Give your answer to the nearest pen

makkiz [27]

Answer:

£ 537.63

Step-by-step explanation:

original price = 100%

selling price = 100% - 7% = 93% = £500

just do the proportion or ratio

$\frac{100\%}{93\%} = \frac{original \: price}{500}$

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3 years ago

Write an algebraic expression for this word expression. 12 decreased by z

Fynjy0 [20]

The answer is 12 minus z

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3 years ago

There are 11 students on a committee. To decide which 4 of these students will attend a conference, 4 names are chosen at random

Alina [70]

Answer:

0.003 = 0.3% probability that Sarah, Jamal, Kate, and Mai are chosen in any order.

Step-by-step explanation:

The students are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

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

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

In this question:

11 students means that $N = 11$

4 are Sarah, Jamal, Kate, and Mai, so $k = 4$

4 are chosen, which means that $n = 4$

What is the probability that Sarah, Jamal, Kate, and Mai are chosen in any order?

This is P(X = 4). So

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 4) = h(4,11,4,4) = \frac{C_{4,4}*C_{7,0}}{C_{11,4}} = 0.003$

0.003 = 0.3% probability that Sarah, Jamal, Kate, and Mai are chosen in any order.

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3 years ago

an instructor wants to study the variance among two 30-second trials of a tennis wall volley test. what statistic will the instr

AlexFokin [52]

The tennis wall volley test has two 30-second trials, and a teacher is interested in analyzing the variation between them. The instructor will most likely determine the "intraclass correlation coefficient" statistic.

<h3>Explain the term intraclass correlation coefficient?</h3>

An indicator of the validity of the ratings for clusters is the intraclass correlation coefficient, abbreviated ICC.

Data that is grouped together is referred to as a cluster. Instead than comparing two independent classes of data, ICC is used to detect correlations within a specific class of data.
As was already noted, Pearson's r is the most often utilized correlation coefficient.
When there are just one or two significant pairs from just one or two raters, Pearson's correlation coefficient is typically employed to measure inter-rater reliability.
However, this intraclass correlation coefficient ought to be utilized if there are more pairs.

A tennis wall volley test has two 30-second trials, and a teacher is interested in analyzing the variation between them.

Thus, the instructor will most likely determine the "intraclass correlation coefficient" statistic.

To know more about the correlation coefficient, here

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7 0

1 year ago