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4 years ago

3.What would be the value of Pearson’s r (simply the square root of r2)?

1 answer:

4 0

Then all we have to do to obtain r is to take the square root of r2: That is, the estimated slope and the correlation coefficient r always share the. The "unitless-ness" of the measurecan be seen from an alternative formula for, All other values of r tell us that the relationship between x and y is not perfect.

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Identify and solve the inequality that represents how many $20 bills, n, you can withdraw from the account without going below t

Alex Ar [27]

Answer:

$100 + 20n \leq 230$

$n \leq 6$

Step-by-step explanation:

Given

$Balance = \$230.00$

$Minimum = \$100$

$Withdrawal = \$20\ each$

Required

Represent using an inequality and solve

Let the number of dollars be represented by n

If 1 withdrawal is $20 bill

n withdrawals would be $20n bills

The total withdrawal and the minimum balance must be less than or equal to the available balance.

So, this gives

$Minimum + Total\ Withdrawal \leq Available\ Balance$

Substitute values for each of these

$100 + 20n \leq 230$

Solving for n

$20n \leq 230 - 100$

$20n \leq 130$

Divide through by 20

$n \leq 6.5$

But n can not be decimal because it represents number of dollar bills , which must always be an integer.

So, we round down the value of n

$n \leq 6$

4 0

3 years ago

Tom’s first mistake was made in step___

lapo4ka [179]

Answer:

OPTION F

OPTION D

Step-by-step explanation:

Tom made his first mistake in Step 4, by subtracting 2.

After Step 3, he should have added 2 on both sides i.e.,

x = 4y - 2 should have become x + 2 = 4y - 2 + 2

⇒ x + 2 = 4y

So, in order to correct his mistake, he should add 2 on both the sides of the equation.

4 0

3 years ago

At a grocery store, eggs come in cartons that hold 12 eggs. Experience indicates that 78.5% of cartons have no broken eggs, 19.2

AfilCa [17]

Answer:

0.8930 or 89.30%

Step-by-step explanation:

The probability that an egg is the only broken one in the carton, given that it is broken, is determined as the percentage of cartons with exactly one broken egg, divided by the percentage of cartons with broken eggs.

19.2% of cartons have exactly one broken egg.

The percentage of cartons with broken eggs is:

$B = 19.2\%+2.2\%+0.1\%\\B=21.5\%$