3 years ago

What is a chi-squared test?

1 answer:

4 0

Answer:

A chi-squared test, also written as χ² test, is a statistical hypothesis test that is valid to perform when the test statistic is chi-squared distributed under the null hypothesis, specifically Pearson's chi-squared test and variants thereof.

I hope it's helpful!

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Tim is 9 years older than 3 times John’s age. If John is 13 years old, how old is Tim?

oee [108]

Answer:

Step-by-step explanation:

3 times 13 (john's age) = 39

39 + 9 = 48 (nine years older than 3 times (39) so you add 9)

Therefore, Tim is 48.

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3 years ago

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Can y’all pls help me find the area of shaded region. pls no links. it’s due today 4/19

AveGali [126]

Area of a Trapezium

The trapezium has two parallel sides and two non-parallel sides

Since sides of lengths 7, 5 are parallel and perpendicular to the side of length 4. Thus the trapezium has bases b1=7, b2=5, and height h=4.

The formula to calculate the area of a trapezium is:

$A=\frac{b1+b2}{2}\cdot h$

Substituting:

$A=\frac{7+5}{2}\cdot4=\frac{12}{2}\cdot4=24$

The area of the shaded region is 24 square units

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2 years ago

6TH GRADE MATH

goldenfox [79]

Answer

We don't know what the inequalities were, so show us 1-4

Step-by-step explanation:

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3 years ago

During a long road trip, you drive 420 miles on a 12-gallon tank of gas. What is your gas mileage (in miles per gallon)?

miss Akunina [59]

420 miles/ 12 gallons= 35 miles per gallon

Final answer: 35 miles per gallon

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4 years ago

Need asap<br><br>10 grams of ointment, how many milligrams is that?

Hunter-Best [27]

Answer:

10 grams equals 10,000 milligrams

Step-by-step explanation:

If one gram is 1000 milligrams then, 10 times 1000 is 10,000

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3 years ago

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