Answer: 1/5, 5
Step-by-step explanation:
Answer:
I dont know why my answer was removed but here it is again with proof
1st. 1/5
2nd. 5
Step-by-step explanation:
The overall cell potential can be calculated by using the equation E0cell=E0red−E0oxid. Step 2: Solve. Before adding the two reactions together, the number of electrons lost in the oxidation must equal the number of electrons gained in the reduction. The silver half-cell reaction must be multiplied by two
b. What is the approximate percentage of women with platelet counts between and ?
Answer:
(a) Approximately 95% of women with platelet counts within 2 standard deviations of the mean.
(b) Approximately 99.7% of women have platelet counts between 65.2 and 431.8.
Step-by-step explanation:
The complete question is: The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 248.5 and a standard deviation of 61.1. (All units are 1000 cells/mul.) using the empirical rule, find each approximate percentage below.
a. What is the approximate percentage of women with platelet counts within 2 standard deviations of the mean, or between 126.3 and 370.7?
b. What is the approximate percentage of women with platelet counts between 65.2 and 431.8?
We are given that the blood platelet counts of a group of women have a bell-shaped distribution with a mean of 248.5 and a standard deviation of 61.1.
Let X = the blood platelet counts of a group of women
The z-score probability distribution for the normal distribution is given by;
Z = ~ N(0,1)
where, = population mean = 248.5
= standard deviation = 61.1
Now, the empirical rule states that;
(a) The approximate percentage of women with platelet counts within 2 standard deviations of the mean, or between 126.3 and 370.7 is given by;
As we know that;
P( < X < ) = 0.95
P(248.5 - 2(61.1) < X < 248.5 + 2(61.1)) = 0.95
P(126.3 < X < 370.7) = 0.95
Hence, approximately 95% of women with platelet counts within 2 standard deviations of the mean.
(b) The approximate percentage of women with platelet counts between 65.2 and 431.8 is given by;
Firstly, we will calculate the z-scores for both the counts;
z-score for 65.2 =
= = -3
z-score for 431.8 =
= = 3
This means that approximately 99.7% of women have platelet counts between 65.2 and 431.8.
Using the empirical rule, approximately 68% of values fall within 1 standard deviation from the mean in a bell-shaped distribution. For ranges 2 or 3 standard deviations from the mean, the respective approximate percentages are 95% and 99.7%.
The question refers to the Empirical rule, which in statistics, is also known as the Three-sigma rule or the 68-95-99.7 rule. This rule is a shortcut for remembering the proportion of values in a normal distribution that are within a given distance from the mean: 68% are within 1 standard deviation, 95% are within 2 standard deviations, and 99.7% are within 3 standard deviations.
Without given specific values for the mean or standard deviations, we can discuss the problem in a general sense:
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i think k is 5 but if i am wrong srry hope it helped
Answer:
hey. pls complete your question.
b. An inch is 1/12 of a foot. How much has the angelfish grown in feet?
40 points!
A)
Earlier, The length of the angelfish = inches
Now, the length of angelfish = inches
We have to determine the grown length of angelfish
= -
=
LCM of '2' and '3' is '6',
=
= inch
Therefore, the angelfish has grown by inch.
B)
We have to determine the increased length of angelfish in feet.
Since foot
So,
= 0.069 foot.
is the value of y - x?
Answer:
X to power 3is=2 while y to power 3is=5so5-2=3
Step-by-step explanation:
x cubed is =8 so cube root of 8is 2
y cubed is =125so cube root of 125is 5
therefore 5-2=3
Answer:
Step-by-step explanation:
Start with:
Distribute by multiplying:
You're left with: