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2 years ago

Help I please I will give crown if correct 10points!!! Don’t skipppp pleaseee

Mathematics

1 answer:

ozzi2 years ago

5 0

Answer:

A regression line and trend wine are equivalent terms.

Step-by-step explanation:

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In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean sc

Daniel [21]

Answer:

The number is $N =1147$ students

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 281$

The standard deviation is $\sigma = 34.4$

The sample size is n = 2000

percentage of the would you expect to have a score between 250 and 305 is mathematically represented as

$P(250 < X < 305 ) = P(\frac{ 250 - 281}{34.4 } < \frac{X - \mu }{\sigma } < \frac{ 305 - 281}{34.4 } )$

Generally

$\frac{X - \mu }{\sigma } = Z (Standardized \ value \ of \ X )$

$P(250 < X < 305 ) = P(-0.9012< Z$

$P(250 < X < 305 ) = P(z_2 < 0.698 ) - P(z_1 < -0.9012)$

From the z table the value of $P( z_2 < 0.698) = 0.75741$

and $P(z_1 < -0.9012) = 0.18374$

$P(250 < X < 305 ) = 0.75741 - 0.18374$

$P(250 < X < 305 ) = 0.57$

The percentage is $P(250 < X < 305 ) = 57\%$

The number of students that will get this score is

$N = 2000 * 0.57$

$N =1147$

6 0

3 years ago

Can someone please help me

BigorU [14]

So J is jelly beans and T is trail mix :)
so J= $3.50
T= $1.50

7 0

3 years ago

Find the zeros of the function. f(x) = 2x2 – 36

Kaylis [27]

Answer:

3√2 and -3√2

Step-by-step explanation:

2x^2-36

2(x^2-36)

2(x+3√2)(x-3√2)

7 0

2 years ago

Read 2 more answers

3 .. 4) through: (-2,5), slope 2.

ArbitrLikvidat [17]

Answer:

y - 5 = 2(x + 2)

General Formulas and Concepts:

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate

y₁ - y coordinate

m - slope

Step-by-step explanation:

Step 1: Define

Slope m = 2

Point (-2, 5)

Step 2: Create equation

y - 5 = 2(x + 2)

8 0

3 years ago

He answer to all of the questions please

AlladinOne [14]

I think it's C,But I'm not sure

5 0

3 years ago