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Leya [2.2K]
3 years ago
12

What are the values of the mean and standard deviation of a standard normal distribution?

Mathematics
1 answer:
Llana [10]3 years ago
4 0
Answer:  
__________________________________________________
            "A standard normal distribution has a mean of "0" and a standard deviation of "1" .
__________________________________________________
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The price of a climbing trip to Mount Kilimanjaro includes an initial fee plus a constant fee per meter.
KatRina [158]

Answer:

Step-by-step explanation:

It's $3.90 for every 30 meters. Or $0.13 for every meter.

3 0
2 years ago
The first team of workers received 50 kg of cement less than the second team. for every hour of work the first team was using 15
stepladder [879]
There are 2 unknown terms in this problem 
the amount of cement the first team received is termed as 'x' hereafter 
the cement the second team received is termed as 'y'
the first team received 50 kg less, the 1st equation is as follows;

x = y - 50    after rearranging 
1) x-y = -50
for every hour 150 kg and 200 kg were used by the two teams separately 
after three hours first team used up 150*3 = 450 kg
the second team used up 200 * 3 = 600 kg
however the first team had 1.5 times as much as second team had after three hours. 
After three hours;
the amount second team had leftover was y - 600
the amount first team had leftover was x - 450
 the amount the second team had ,multiplied by 1.5 is equal to what the first team had
we can build the 2nd equation using this information

1.5 * (y-600) = x-450
1.5y - 900 = x - 450 
rearrange the equation,
 
 1.5y - x = -450 +900
2) 1.5y - x = 450 

add 1st and 2nd equations to eliminate x 
1) + 2)     (x - y = -50) + (1.5y - x = 450)
1.5y - y = 450 -50
0.5y = 400
y = 400/ 0.5
y = 800 kg
substitute y = 800 in x = y - 50
x = 800 - 50 
x = 750 kg

first team received 750 kg and second team received 800 kg


8 0
3 years ago
Maxie spent 15 hours doing her homework last week this week she spent 18 hours doing her homework she says that she spent 120% m
scZoUnD [109]

Answer: She's wrong.

Step-by-step explanation:

Numbers of hours used in solving homework last week = 15

Numbers of hours used in solving homework this week = 18

Percentage increase = (18 - 15) / 15 × 100

= 3/15 × 100

= 1/5 × 100

= 20%

Since Maxie said that she spent 120% more time doing homework this week, she's wrong. She only spent 20% more.

5 0
3 years ago
3/6 times 2/6. Please show step by step directions I NEED HELP ASAP
viva [34]

To solve, simply layout and equation.

3/6*2/6.

Step 1: Simply 3/6.

1/2*2/6

Step 2: Simplify 2/6.

1/2*1/3

Step 3: Multiply.

1/2*1/3

1/6.

So, the answer to this problem is 1/6.

7 0
3 years ago
Read 2 more answers
Help me with this question? What is 8% of 85?
natta225 [31]
X = 8% * 85

x = 8/100 * 85

x = 0.08 * 85

Multiply 0.08 and 85.

x = 6.8

6.8 is 8%<span> of 85.</span>
3 0
2 years ago
Read 2 more answers
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