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SVETLANKA909090 [29]

2 years ago

10

The price of chicken pieces at supermarket is shown as R36.40/kg mandy goes to the supermarket to buy the chicken is sold in 1 k

ilograms packets. So calculate the total price if Mandy buys 2 kilograms of chicken

1 answer:

Degger [83]2 years ago

8 0

Answer:

R72. 80

Step-by-step explanation:

1KG = R36, 40

2KG = R36.40 X 2

= R72. 80

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chubhunter [2.5K]

Answer:

Base

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. There are different types of triangles which are scalene triangle, isosceles triangle,, equilateral triangle etc..

An isosceles triangle is a triangle in which two of the sides are equal, also two angles are equal. The two equal sides of the isosceles triangle are called base while the other side is the base.

The base of an Isosceles triangle is the side included between the pair of congruent angles.

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What is the last of 24 and 72

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The LCM of 24 and 72 is 72 :)

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3 years ago

Given the conditional relative frequency table by column, what does the 0. 14 represent? Given that a student is a 10th grader,

olga nikolaevna [1]

Conditional relative frequency is the ratio of the the value of somthing with the total value for a set in data table. The option A is the correct option which is a student is a 10th grader, there is a 14% chance he or she has a job.

Given information

In the given table,

There is 10th grade students are with 0.14 has job and 0.86 has no job in total 1.

There is 11th grade students are with 0.25 has job and 0.75 has no job in total 1.

There is total students are with 0.20 has job and 0.80 has no job in total of 1.

<h3>Conditional relative frequency-</h3>

Conditional relative frequency is the ratio of the the value of somthing with the total value for a set in data table.

The column two gives the data of the 10th grade students. In the total of 1, 0.14 students has jobs and these students belongs to 10th grade. 0.14 is 14 percent of the number 1. Thus the 14 percent of 10 grade students has job.

Thus the option A is the correct option which is a student is a 10th grader, there is a 14% chance he or she has a job.

Learn more about the conditional relative frequency here;

brainly.com/question/3444575

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2 years ago

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3 years ago

Read 2 more answers

An airplane has 100 seats for passengers. Assume that the probability that a person holding a ticket appears for the flight is 0

zmey [24]

Answer:

96.33% probability that everyone who appears for the flight will get a seat

Step-by-step explanation:

I am going to use the binomial approximation to the normal to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

$E(X) = np$

The standard deviation of the binomial distribution is:

$\sqrt{V(X)} = \sqrt{np(1-p)}$

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that $\mu = E(X)$ , $\sigma = \sqrt{V(X)}$ .

In this problem, we have that:

$n = 105, p = 0.9$

So

$\mu = E(X) = np = 105*0.9 = 94.5$

$\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{105*0.9*0.1} = 3.07$

What is the probability that everyone who appears for the flight will get a seat

100 or less people appearing to the flight, which is the pvalue of Z when X = 100. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{100 - 94.5}{3.07}$

$Z = 1.79$

$Z = 1.79$ has a pvalue of 0.9633

96.33% probability that everyone who appears for the flight will get a seat

7 0

3 years ago