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Nikitich [7]
3 years ago
8

Help Me Please I`ll Give You Brainlist.

Mathematics
1 answer:
maxonik [38]3 years ago
4 0
Which one do you need help on
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My mom said she's a virgin but I'm her child and my dad also but I look like my dad how does that makes sense
zavuch27 [327]

How can your mom say she’s a virgin? Unless you’re not directly from her. You look like your dad because of genes. I look like my mom while my sister looks like my dad. Nothing changes that. Ask her why she says that—?

7 0
3 years ago
Nine students took the SAT. Their scores are listed below. Later on, they read a book on test preparation and retook the SAT. Th
SCORPION-xisa [38]

Answer:

t= 0.4933

t ≥ t ( 0.025 ,8 ) = 2.306

Since the calculated value of t= 0.4933 is less than t ( 0.025 ,8 ) = 2.306 therefore we accept the null hypothesis at 5 % significance level . On the basis of this we conclude that the book had no effect on their scores.

Step-by-step explanation:

We state our null and alternative hypotheses as

H0: ud= 0 Ha: ud≠0

The significance level is set at ∝= 0.05

The test statistic under H0 is

t= d`/ sd/√n

which has t distribution with n-1 degrees of freedom

The critical region is t ≥ t ( 0.025 ,8 ) = 2.306

Computations

Student       Scores before      Scores after    Difference           d²

                        reading book                    ( after minus before)

1                          720                   740             20                       400

2                        860                   860              0                           0

3                        850                   840             -10                       100

4                        880                   920             40                       1600

5                        860                   890             30                        900

6                        710                    720              10                         100

7                       850                    840              -10                       100

8                      1200                  1240             40                        1600

<u>9                      950                    970              20                           40</u>

<u>∑                    6930                  8020           140                         4840</u>

d`= ∑d/n= 140/9= 15.566

sd²= 1/8( 4840- 140²/9) = 1/8 (4840 - 2177.778) = 2662.22/8= 332.775

sd= 18.2422

t= 3/ 18.2422/ √9

t= 0.4933

Since the calculated value of t= 0.4933 is less than t ( 0.025 ,8 ) = 2.306 therefore we accept the null hypothesis at 5 % significance level . On the basis of this we conclude that the book had no effect on their scores.

7 0
3 years ago
A survey was given to people who owned a certain type if car
Stolb23 [73]

Answer:

hi iu C hi TC x tex t TC TC TC TC TC u TC u TC x itu TC

8 0
3 years ago
In two or more complete sentences, describe the steps necessary in completing the following sum. In your final answer, include t
tiny-mole [99]

Answer:

First, you would need to find a common denominator for the two, in this case it would be 6 which would make the equation 3/6 + 4/6=7/6. Then in order to make the answer a mixed number you would need to divide the numerator into the demonanator,  write down the whole number answer (6 will go into 7 ONE time) then write down the "leftovers". The final answer would be 1 1/6

(i hope this helps! im not the best at explaining)

6 0
4 years ago
A water tank that is rectangular in shape is 15 feet long, 10 feet wide, and 6 feet deep.
liubo4ka [24]

Answer:

900 feet squared

Step-by-step explanation:

15 x 10 x 6 = 900

6 0
3 years ago
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