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Brrunno [24]
3 years ago
10

The average score of this quiz is 24 points with a standard deviation of 1.5 points. What is the probability that someone scored

21.9 or less
Mathematics
1 answer:
navik [9.2K]3 years ago
7 0

Answer:

8.08 %

Step-by-step explanation:

Let us denote : X= score X follows a normal distribution with mean =24 and standard deviation =1.5

Step 2

The probability that someone scored 21.9 or less is :

\mathrm{P}(\mathrm{X} \leq 21.9)

=\mathrm{P}\left(\mathrm{Z} \leq \frac{21.9-24}{1.5}\right)

=\mathrm{P}(\mathrm{Z} \leq-1.4)

=0.0808

=8.08%

Answer : 8.08 %

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Answer:

B- Parallelogram PQRS is also a rhombus.

Step-by-step explanation:

Given

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Required

Which of the option is true

(a) PQRS can be a rectangle

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Hence, (a) is false

<em>If (a) is false, then (d) is also false</em>

(b) PQRS can a rhombus

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Given rectangle RUTS, the missing reasons that justifies the five statements in the two-column proof are:

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  3. Definition of rectangle.
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<h3>What is a Rectangle?</h3>
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Therefore, based on what we are given and the definition of a rectangle, we can establish that △URS ≅ △STU by SAS.

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