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What are the z-score boundaries for the middle of 50 percent of the distribution?
50 * * * * * z = -0.67449 to z = +0.67449
What z value corresponds to 17 percent of the data between the mean and the z value?
I believe your question is to find a range going from the mean to a z-value on the standard normal distribution that corresponds to 17% of the area. A normal distribution goes from values of minus infinity to positive infinity. A standard normal distribution has a mean of 0 and an standard deviation of 1. It is usually best if you draw a diagram, in this case a bell shape curve with mean = 0. The area to the left of the mean is 50% of the total area. We find a z value that corresponds to 67% (50% + 17%) of the area to the left of this value. This can be done either with a lookup table or a spreadsheet program. I prefer excel, +norminv(0.67) = 0.44. The problem could also be worded to find the area going from a z-value to the mean. In this case, we must find a z-value that corrsponds to 33% (50-17). Using Excel, I calculate +norminv(0.33) = -0.44.
What is the z value such that 50 percent of the total area lies to the right of the curve in a normal distribution?
The Z value is 0.
What is the only value z for which 6z - 24 equals 2z plus 50?
z = 18.5 6z - 24 = 2z + 50 Take the -24 to the other side of the equals and change its sign; take the 2z to the other side of the equals and change its sign: => 6z - 2z = 50 + 24 => 4z = 74 Divide both sides by 4: => z = 18.5
What plus what times what equals to 50?
2 + 6 x 8
Y varies directly as the square of r If y equals 80 when are equals 4 find y when are equals 6?
80=4x, z=6x. find Z. x=80/4, x=20. z=6x20 z=120 answer= 120
X varies directly with y and z. x 120 when y 5 and z 8. Find x when y 6 and z 2.?
Since ( x ) varies directly with ( y ) and ( z ), we can express this relationship as ( x = k \cdot y \cdot z ) for some constant ( k ). Given that ( x = 120 ) when ( y = 5 ) and ( z = 8 ), we can find ( k ) as follows: [ 120 = k \cdot 5 \cdot 8 \implies k = \frac{120}{40} = 3. ] Now, to find ( x ) when ( y = 6 ) and ( z = 2 ): [ x = 3 \cdot 6 \cdot 2 = 36. ] Thus, ( x = 36 ).
What plus what divided by what equals 120?
To find a solution for the equation "what plus what divided by what equals 120," we can set it up as follows: Let ( x ) and ( y ) represent the two numbers being added, and ( z ) represent the number by which the sum is divided. One possible solution could be ( (x + y) / z = 120 ). For example, if ( x = 240 ), ( y = 0 ), and ( z = 2 ), then ( (240 + 0) / 2 = 120 ).
What are the z-score boundaries for the middle of 50 percent of the distribution?
50 * * * * * z = -0.67449 to z = +0.67449
How much are z-coil shoes?
Z-Coil shoes sell for about 160.-- retail. Many people rave about them
If a normally distributed group of test scores have a mean of 70 and a standard deviation of 12 find the percentage of scores that will fall below 50?
X = 50 => Z = (50 - 70)/12 = -20/12 = -1.33 So prob(X < 50) = Prob(Z < -1.33...) = 0.091
How to get a free z card on zwinky?
you go to your wardrobe and press suprise and if you find your perfect outfit or items there or write this z card t shirt 50 cent
Can you solve the roman numeral equation of L minus some unknown equals C detailing your workings?
In Roman numerals L and C are 50 and 100 respectively. So substitute 50 and 100 into the equation and let the unknown be called z. 50-z = 100 -z = 100-50 -z = 50 --z = -50 Solution: z = -50 Substituting -50 into the equation: 50--50 = 100 or L--L = C. Remember that in maths a double minus sign before a number changes that number into a plus number. Check it out on your calculator. David Gambell, Merseyside, England.
Who is richer 50 cent or jay z?
50 Cent jay-z........... $500 million 50 cent........$700 million
What is the brake horsepower of a Toyota Altezza AS200 Z Spec saloon?
160 bhp
If in a complex number the modulus of z 3 is less or equal to 8 then find the minimum of modulus of z - 2?
The possible values of z are (a cis b), where a is any number between and including 0 and 2 and b is any of 0, 60, 120, 180, 240 and 300 degrees. The minimum modulus of z - 2, that is |z - 2|, is 0.
Two cars start moving from the same point. One travels south at 60 mi per hour and the other travels west at 25 mi per hour. At what rate is the distance between the cars increasing two hours later?
dx/dt= 25 dy/dt=60 dz/dt=? x^ 2+y^2=z^2 2 x dx/dt +2 y dy/dt = 2 z dz/dt @ t = 2 x= 2* 25 = 50 y= 2* 60 =120 z=SQR (50^2 +120^2) = 130 2*50*25 +2* 120* 60 = 2* 130* dz/dt dz/dt = 65 mph .
