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3 years ago

How to find standard deviation from true probability and sample size.

Mathematics

1 answer:

bixtya [17]3 years ago

8 0

Answer:

I can even see anything can you reupload your answer, please?

Step-by-step explanation:

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In March, a family starts saving for a vacation they are planning for the end of August. The family expects the vacation to cos

Makovka662 [10]

Deposited money:

March: 120
April: 120+(120×20)/100=120+24=144
May: 144+(144×20)/100=144+18,8=162,8
June: 162,8+(162.8×20)/100=162,8+32.56=195.36
July: 195.36+(195.36×20)/100=195.36+23.87=219.23
August: 219.23+(219.23×20)/100=219.23+43.85=263.08

120+144+162.8+195.36+219.23+263.08=1105.19
So the answer is no.

7 0

3 years ago

Solve equation for x. State any restrictions. ax+2=bx+c

Marina CMI [18]

it says i need to have at least 20 characters so here you go buddy

7 0

4 years ago

Write an expression/equation to represent this and find the shortest distance Jim can walk from the haunted mansion to the clown

noname [10]

Answer: he can walk for the clase thenmake a left for them

Step-by-step explanation:

3 0

3 years ago

Sean made a ribbon that was 3 1/6 inches long. Fran made one that was 1 5/6 inches long.How much longer was Sean's ribbon than F

brilliants [131]

Let's rewrite the mathematical expressions:
3 1/6 = 3.166666667
1 5/6 = 1.833333333
Subtracting both expressions we have:
3.166666667- 1.833333333 = 1.727272727
Answer:
Sean's ribbon is 1.727272727 in long than Fran's

5 0

3 years ago

11. Isaac wrote two simplified expressions that were not equal to each other. Each equation also had

Elodia [21]

Answer:

The equation has only one solution

Step-by-step explanation:

* Lets explain how to solve the problem

- There are three types of solutions for the equations

Case (1)

# Two sides of the equation have different coefficient of the variable

and same or different numerical terms, then the equation has only

one solution

- Ex: 2x + 5 = x + 5, lets solve it

∵ 2x + 5 = x + 5

- subtract x from both sides

∴ x + 5 = 5

- Subtract 5 from both sides

∴ x = 0

- Zero is a solution

∴ The solution of the equation is x = 0

- If the numerical terms are different x will be any other value, so the

equation has only one solution

∴ The equation has one solution

Case (2)

# Two sides of the equation have same coefficient of the variable,

and different numerical terms, then the equation has no solution

- Ex: 14x - 20 = 14x + 10, lets solve it

∵ 14x - 20 = 14x + 10

- Subtract 14x from both sides

∴ - 20 = 10

- The left hand side not equal the right hand side , then there is

no value of x can make the two sides equal

∴ The equation has no solution

Case (3)

# Two sides of the equation have same coefficient of the variable,

and same numerical terms, then the equation has infinitely

many solutions

- Ex: 3x + 5 = 3x + 5, lets solve it

∵ 3x + 5 = 3x + 5

- Subtract 3x from both sides

∴ 5 = 5

- The left hand side is equal to the right hand side , then x can be

any value because the two sides is already equal without x

∴ The equation has infinitely many solutions

∵ He will write two expressions simplified , not equal , have different

coefficients on the variables and equate them, then it is like

the first case

- That means not same coefficient of the variable, and may be not

same numerical term

∴ The equation has only one solution

5 0

4 years ago