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shutvik [7]
3 years ago
6

How many roots does a quadratic have if the discriminant if prime?

Mathematics
1 answer:
scZoUnD [109]3 years ago
5 0

"The discriminant is prime?" I haven't heard that one before.

Here are the general rules:

1. a positive discriminant results in two real, unequal roots.

2. a zero discr. results in two real, equal roots.

3. a negative discr. results in two complex roots, which sometimes means two imaginary roots.

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why is normal distribution important in statistics and in everyday life? give examples to underscore your points.
Ymorist [56]

Because it accurately depicts the distribution of values for many natural occurrences, it is the most significant probability distribution in statistics.

The most significant probability distribution in statistics for independent, random variables is the normal distribution, sometimes referred to as the Gaussian distribution. In statistical reports, its well-known bell-shaped curve is generally recognized.

The majority of the observations are centered around the middle peak of the normal distribution, which is a continuous probability distribution that is symmetrical around its mean. The probabilities for values that are farther from the mean taper off equally in both directions. Extreme values in the distribution's two tails are likewise rare. Not all symmetrical distributions are normal, even though the normal distribution is symmetrical. The Student's t, Cauchy, and logistic distributions, for instance, are all symmetric.

The normal distribution defines how a variable's values are distributed, just like any probability distribution does. Because it accurately depicts the distribution of values for many natural occurrences, it is the most significant probability distribution in statistics. Normal distributions are widely used to describe characteristics that are the sum of numerous distinct processes. For instance, the normal distribution is observed for heights, blood pressure, measurement error, and IQ scores.

Learn more about probability distribution here:

brainly.com/question/28021875

#SPJ9

7 0
1 year ago
Read 2 more answers
The data set shows the admission prices at several museums. $20, $20, $16, $12, $15, $25, $11 Find and interpret the range, inte
Gemiola [76]
11, 12, 15, 16, 20, 20, 25
Mean: 17

The range is 25-11 = 14 (the numbers in bold)

The interquartile range is 20-12=8 (the numbers underlined)

The mean absolute deviation is: 4; this is found by finding how far each number is from 17 (mean): 6,5,2,1,3,3,8  (28) and dividing by 7.

Part B:

The prices vary by no more that $14 (range).

<span>The middle half of the prices vary by no more than $8 (IQR).
</span>
<span>The admission prices differ from the mean price by an average of $4 (MAD).</span> 

8 0
3 years ago
Question: Find the equivalent number.<br><br><br> (I will do brainlisit )
vodomira [7]

Answer:

81/9

9/1

9 is your answer ☺️☺️☺️

3 0
3 years ago
Read 2 more answers
Solve for X please help
lbvjy [14]

Answer:

71 degrees

Step-by-step explanation:

Sum of three angles of triangle=180

Let's find the third angle

73+36=109

180-109=71

Vertical angles are congruent so x= angle 3

So x is 71 degrees

8 0
3 years ago
Read 2 more answers
A relation is plotted as a linear function on the coordinate plane starting at point C at (0,-1) and ending at point D at (2,-11
nignag [31]
The rate of change is the slope.

slope = m = (-11 - (-1))/(2 - 0) = (-11 + 1)/(2) = -10/2 = -5

The initial value is the y-intercept. The y-intercept is (0, -1), so the initial value is -1.


4 0
3 years ago
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