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3 years ago

PLEASE HELP ME WITH THIS STATISTICS WORK SAMPLE (will give brainliest)

Mathematics

2 answers:

djyliett [7]3 years ago

6 0

The table shown shows the heights of voices.
To get the tallest height you calculate the mean of each voice.
Mean height of soprano;
(60+62+62+64+65+65+66+66+67+68)/10 = 645/10 =64.5
Mean height of alto;
(60+61+62+63+64+65+66+69+70+72)/10 =592/10 =59.2
Mean height of tenor;
(64+66+66+67+68+70+72+73+74+76)/10 = 550/10 =55
mean height of Bass;
(66+68+68+69+70+70+71+72+73+75)/10 = 702/10 =70.2

The two voice parts that have the tallest singers are Soprano and Bass.

These is because the two voices have the highest average height.

Stella [2.4K]3 years ago

3 0

Hey, this is for your question with the tennisballs and the air between them (i do not use inches here so i'm not really sure about that)

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Assume that an opinion poll conducted in a 1998 congressional race found that on election eve, 54% of the voters supported Congr

In-s [12.5K]

Answer:

Congressman Smith will defeat Challenger Jones

Step-by-step explanation:

Since the poll has a +/- 3% margin of error, the minimum and maximum possible percentages for each candidate are:

(44% - 3%) ≤ Jones ≤ (44% + 3%)

41% ≤ Jones ≤ 47%

(54% - 3%) ≤ Smith ≤ (54% + 3%)

51% ≤ Smith ≤ 57%

This means that, even in the worst possible scenario for Congressman Smith, he would still beat Jones with 51% against 47% of the votes. The pollster can safely predict that Congressman Smith will defeat Challenger Jones .

5 0

3 years ago

Locating Zeros of Polynomial Function:<br>Approximate the real zeros to the nearest tenth

solmaris [256]

we are given

$f(x)=2x^4-x^3+x-2$

we can check each options

option-A:

-1,1

we can plug x=-1 and x=1 and check whethet f(x)=0

At x=-1:

$f(-1)=2(-1)^4-(-1)^3+(-1)-2$

$f(-1)=0$

At x=1:

$f(1)=2(1)^4-(1)^3+(1)-2$

$f(1)=0$

so, this is TRUE

option-B:

0,1

we can plug x=0 and x=1 and check whethet f(x)=0

At x=0:

$f(0)=2(0)^4-(0)^3+(0)-2$

$f(0)=-2$

At x=1:

$f(1)=2(1)^4-(1)^3+(1)-2$

$f(1)=0$

so, this is FALSE

option-C:

-2,-1

we can plug x=-2 and x=-1 and check whethet f(x)=0

At x=-2:

$f(-2)=2(-2)^4-(-2)^3+(-2)-2$

$f(-2)=36$

At x=-1:

$f(-1)=2(-1)^4-(-1)^3+(-1)-2$

$f(-1)=0$

so, this is FALSE

option-D:

-1,0

we can plug x=-1 and x=0 and check whethet f(x)=0

At x=-1:

$f(-1)=2(-1)^4-(-1)^3+(-1)-2$

$f(-1)=0$

At x=0:

$f(0)=2(0)^4-(0)^3+(0)-2$

$f(0)=-2$

so, this is FALSE

5 0

3 years ago

Pls help me ill give brainliest <br><br> Do all 3 pls to get brainliest

olya-2409 [2.1K]

Answer:

16.) c. 2x²+7x-15

17.) c. $y=\frac{4}{9}x+\frac{17}{9}$

18.) D

Step-by-step explanation:

have a wonderful day! :D

6 0

3 years ago

Question Help Find the original price of a pair of shoes if the sale price is $11 after a 75% discount.

fenix001 [56]

If it was a 75% discount, then u r actually paying 25%

so....25% of the original price is $ 11

0.25x = 11
x = 11 / 0.25
x = 44 <=== the original price

4 0

3 years ago

Change 3/8 to a decimal fraction. 0.375 37.5 375 0.0375

meriva

3/8 as a decimal would be 0.375

3 0

3 years ago

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