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06-11-2021
Mathematics

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Heights of certain plants at a nursery are normally distributed with a mean of 85.2cm and a standard deviation of 7.4 cm. If their s-scores are greater than 2.5, the plants are displayed in the main lobby. To the nearest cm, what is the minimum required height for this type of plant to be displayed in the main lobby?

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chibunduoyibe chibunduoyibe

06-11-2021

Step-by-step explanation:

(x-85.2)/7.4=2/5

(x-85.2)=18.5

x=18.5+85.2=103.7cm

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