Answer:
a) Scores of 2 and higher are significantly high
b) Scores of -2 and lower are significantly low
c) Scores between -2 and 2 are not significant.
Step-by-step explanation:
Mean = 0
Standard deviation = 1
a. significantly high (or at least 2 standard deviations above the mean).
2 standard deviations above the mean is:
0 + 1*2 = 2
So scores of 2 and higher are significantly high
b. significantly low (or at least 2 standard deviations below the mean).
2 standard deviations below the mean is:
0 - 1*2 = -2
So scores of -2 and lower are significantly low
c. not significant (or less than 2 standard deviations away from the mean).
2 standard deviations above the mean is:
0 + 1*2 = 2
2 standard deviations below the mean is:
0 - 1*2 = -2
So scores between -2 and 2 are not significant.
$232400 Money earned in the next 7 years.
Money earned per year:
$33200 = 1st year
$35400 = 2nd year
$37600 = 3rd year
$39800 = 4th year
$42000 = 5th year
$44200 = 6th year
$46400 = 7th year
Answer:
A
Step-by-step explanation:
rod is closest at 3m change
judy is medium at 7 m change
nelda is deepest at 9m change
Answer:
2 moles of N₂ will produce 4 moles of NH₃
Step-by-step explanation:
Equation of reaction
N₂ + 3H₂ → 2NH₃
The process above is the Born-Harber method of producing ammonia NH₃ industrially.
From the equation of reaction,
1 moles of N₂ will produce 2 moles of NH₃
1 moles N₂ = 2 moles NH₃
2 moles of N₂ = x moles of NH₃
x = (2*2) / 1 = 4moles of NH₃
2 moles of N₂ will produce 4 moles of NH₃
