Answer:
250%
Step-by-step explanation:
(2 1/2) × 100%
= 250%
= 2.5
Answer:
it is 250%.
Step-by-step explanation:
Good that the wrong answer was deleted
Answer:
= 4n - 2
Step-by-step explanation:
There is a common difference d between consecutive terms in the sequence, that is
6 - 2 = 10 - 6 = 14 - 10 = 18 - 14 = 4
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 2 and d = 4 , thus
= 2 + 4(n - 1) = 2 + 4n - 4 = 4n - 2
To find the percentage of people with an IQ score between 83 and 117, we need to find the area under the bell-shaped curve between these two scores.
First, we need to standardize the scores by subtracting the mean from each score and dividing by the standard deviation.
For a score of 83:
Standardized score = (83 - 100) / 17 = -1
For a score of 117:Standardized score = (117 - 100) / 17 = 1
Now, we can find the area under the curve between these standardized scores using a standard normal distribution table or calculator.
Using a standard normal distribution table, we can find the area for a standardized score of -1 as 0.1587. This represents the percentage of people below a score of 83.
Similarly, the area for a standardized score of 1 is 0.8413, representing the percentage of people below a score of 117.
To find the area between these two scores, we subtract the area below 83 from the area below 117:
0.8413 - 0.1587 = 0.6826
So approximately 68.26% of people have an IQ score between 83 and 117.
p = d – 1
p = d – 2
p = d + 1
d = 2p
d = 2p – 1
d = 2p
d = 2p + 1
The pair of equations that models the relationship between p and d are expressed as: p = d + 2, and p = d - 1.
An equation is used to represent a situation using variables (letters) and figures.
"p is 2 more than d" can be expressed as: p = d + 2.
Also, we can represent the statement, "p is 1 less than d" as: p = d - 1.
Therefore, the pair of equations would be: p = d + 2, and p = d - 1.
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