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7) \( \frac{10 p^{4}}{6 p} \)

Tonicity refers to the amount of pressure exerted on a membrane due to osmosis. the rate at which a solid moves across a selectively permeable membrane the rate at which water moves across a selectively permeable membrane.

33. A factory makes low cost soccer balls with diameters that are normally distributed with mean \( \mu \mathrm{cm} \) and standard deviation 0.25 cm . (a) Estimate the number of balls in a random sample of 200 balls that have diameters within 0.3 cm of the mean diameter. (b) The diameters of \( 80 \% \) of the soccer balls produced by this factory have diameters within \( k \mathrm{~cm} \) of the mean diameter. Find the value of \( k \). (c) \( 25 \% \) of the balls have diameters less than 21.832 cm . Find \( \mu \).

A normal distribution has a mean of 14 and a standard deviation of 4 . Use the 68-95-99. 7 rule to find the percentage of values in the distribution above 26. What is the percentage of values in the distribution above 26 ? \( \square \% \) integer or a decimal.)

En al Zologica har 10,000 aspecies ste total 6110 son viviparos y el resto viparosd Cuantos animalas oviparos hay? cuantos animalas viviparos har? Animalo vivipas hay 6