<h3>The medians does'nt support the conclusion</h3>
<em><u>Solution:</u></em>
Given that,
Robin's scores: 99, 108, 102, 107, 119
Order the number from least to greatest
99, 102, 107, 108, 119
Median is the middle value of data set
Median is 107
Evelyn's scores: 125, 137, 138, 145, 145
Order the number from least to greatest
125, 137, 138, 145, 145
Medain is 138
The median of Evelyn's scores is greater than the median of Robin's
Therefore, the medians does'nt support the conclusion.
"If and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. The correct option is D.
<h3>What is "if and only if" operator?</h3>
In logic and related subjects such as mathematics and philosophy, "if and only if" (abbreviated "iff") is a biconditional logical connective between two assertions that is either true or untrue. It is represented by ⇔ or ↔.
The two of the events are
- p: the whole number has one digit.
- q: the whole number is less than 10.
Now, the representation of "the whole number has one digit if and only if the whole number is less than 10" is done as p ↔ q.
Hence, the correct option is D.
Learn more about "if and only if" operator:
brainly.com/question/18301011
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Answer:
(130.08, 139.92)
Step-by-step explanation:
Given that:
Mean (m) = 135
Standard deviation (σ) = 30
Sample size (n) = 100
α = 90%
The confidence interval value is obtained using the relation:
Mean ± Zcritical * (standard deviation / sqrt(n))
Zcritical at 90% = 1.64
standard deviation / sqrt(n) = 30 / sqrt(100)
= 30 / 10 = 3
Hence,
135 ± 1.64 * (3)
Lower limit : 135 - (1.64 * 3) = 130.08
Upper limit : 135 + (1.64 * 3) = 139.92
Hence,
Confidence interval = (130.08, 139.92)
Answer:
A rate is a ratio that is used to compare different kinds of quantities. A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity. Some common unit rates are miles (or kilometers) per hour, cost per item, earnings per week, etc.
If you search that question up, this is what comes back.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
since from -2 it starts to be a straight line and ends at 1
