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kkurt [141]
3 years ago
7

What is the probability of randomly selecting a z-score less than z = 1.25 from a normal distribution?

Mathematics
1 answer:
DedPeter [7]3 years ago
8 0

Answer:

The probability is 0.8944

Step-by-step explanation:

The probability of Z<1.25 in a normal distribution is

P(Z<1.25) = 0.5 + P(Z<1.25)

P(Z<1.25) = 0.5 + 0.3944

P(Z<1.25) = 0.8944

Hence, the probability of randomly selecting a z-score less than z = 1.25 from a normal distribution is 0.8944

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1) x &lt; -14<br> please help i don’t know how to do this
Galina-37 [17]

Answer:  See the diagram below.

This diagram shows a closed filled in circle at -14 on the number line. Also, the shaded region is to the left of the closed circle. This visually represents values that are smaller than -14, or equal to -14.

The filled in circle is used to indicate "include this endpoint". In contrast, an open hole indicates "do not include this endpoint" which is only used if the inequality was x < -14 instead of x \le -14. The "or equal to" portion is why we include the endpoint.

7 0
3 years ago
How many solutions does the system<br> Y=-2x+2<br> Y=x2-2x+4
timofeeve [1]

Answer:

Your expression have just one solution because a lineal equation can have only one solution, but for example, a cuadratic equation can have 2 solutions or one repeated solution

brainliest please :)

8 0
4 years ago
Divya also wants to make fruit smoothies for dessert. She purchases
Slav-nsk [51]

Answer:

$17.97

Step-by-step explanation:

add everything up

- bananas: 6(0.75) = $4.50

- rice milk: $3.49

- strawberries: 2(4.99) = $9.98

5 0
3 years ago
Read 2 more answers
A class there at 6:45 PM in the class ends at 10:25 PM how long is this class
Alex787 [66]

Answer:4 hours an 40 minutes

Step-by-step explanation: i started out adding the hours together so the class started at 6:45 the 7:45 then 8:45 then 9:45 then i had to stop there an add 15 minutes to get to 10:00 then i adding another 25 minutes to get to 10:45

3 0
4 years ago
In a certain city the cost for a taxi ride for 20 miles is $13. For 30 miles the cost is $18. Assuming the number of miles is x
anygoal [31]
We need to write the linear equation that is satisfied by (20,13) and (30,18).
                             $18 - $13         $5
The slope is m = --------------- = -------- = $0.50/mile
                              30 - 20            10

We need to find the y-intercept of this function.  To do that, start with the slope-intercept form   y = mx + b

and subst. the y and x values from one of the two given points.  Suppose we choose (20,$13):

$13 = ($0.50/mile)(20 miles) + b

Then $13 = $10 + b, and b = $3.

There's an up-front charge of $3 just to step into the taxi.

The equation in question is y = ($0.50/mile)x + $3.00           (answer)
5 0
3 years ago
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