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2 years ago

Can someone explain scatter plots

Mathematics

2 answers:

allochka39001 [22]2 years ago

8 0

Answer:

a type of plot or mathematical diagram using coordinates to display values for typically two variables for a set of data

Step-by-step explanation:

In a scatter plot has is a line of best fit which shows the closest values to the many on the plot.

hodyreva [135]2 years ago

7 0

Answer:

A scatter plot is a plot that uses dots to show values for two different types of numeric variables.

Step-by-step explanation:

i tried to shorten it as much as possible for you.

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Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. What does 0 rep

Dmitrij [34]

Step-by-step explanation:

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2 years ago

Read 2 more answers

PLEASE HELP!!! I NEED THE ANSWER SOON :)

densk [106]

$y=2x \newline y= x^{2} -3$

Substitue 2x for y in the second equation:

$2x= x^{2} -3$

Rearrange to $a x^{2} +bx+c=0$ form:

$x^{2} -2x-3=0$

Factor:

$(x-3)(x+1)=0$

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To find y-coordinates of pts of intersection, plug these x-values into first equation to get $y=-2$ and $y=6$

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3 years ago

Which statement about rational numbers is true?

Ilya [14]

Answer:

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Step-by-step explanation:

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2 years ago

Ed buys a vase for £24 and adds 25% onto the price before putting it into his shop window.

hoa [83]

The price-tag say 30 £

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2 years ago

he amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.3 minutes and s

sp2606 [1]

Complete question:

He amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.3 minutes and standard deviation 1.4 minutes. Suppose that a random sample of n equals 47 customers is observed. Find the probability that the average time waiting in line for these customers is

a) less than 8 minutes

b) between 8 and 9 minutes

c) less than 7.5 minutes

Answer:

a) 0.0708

b) 0.9291

c) 0.0000

Step-by-step explanation:

Given:

n = 47

u = 8.3 mins

s.d = 1.4 mins

a) Less than 8 minutes:

$P(X$

P(X' < 8) = P(Z< - 1.47)

Using the normal distribution table:

NORMSDIST(-1.47)

= 0.0708

b) between 8 and 9 minutes:

P(8< X' <9) = $[\frac{8-8.3}{1.4/ \sqrt{47}}< \frac{X'-u}{s.d/ \sqrt{n}} < \frac{9-8.3}{1.4/ \sqrt{47}}]$

= P(-1.47 <Z< 6.366)

= P( Z< 6.366) - P(Z< -1.47)

Using normal distribution table,

$NORMSDIST(6.366)-NORMSDIST(-1.47)$

0.9999 - 0.0708

= 0.9291

c) Less than 7.5 minutes:

P(X'<7.5) = $P [Z< \frac{7.5-8.3}{1.4/ \sqrt{47}}]$

P(X' < 7.5) = P(Z< -3.92)

NORMSDIST (-3.92)

= 0.0000

3 0

2 years ago