import { result } from "../../utility/result.js";
import { DistError } from "../DistError.js";
import { BaseSymbolicDist } from "./BaseSymbolicDist.js";
type Args = {
    alpha: number;
    beta: number;
};
export declare class Beta extends BaseSymbolicDist<"Beta", Args> {
    readonly symbolicType = "Beta";
    alpha: number;
    beta: number;
    private constructor();
    static make({ alpha, beta }: Args): result<Beta, string>;
    getArgs(): {
        alpha: number;
        beta: number;
    };
    toString(): string;
    simplePdf(x: number): number;
    cdf(x: number): number;
    inv(x: number): number;
    sample(): number;
    mean(): number;
    variance(): result<number, DistError>;
    _isEqual(other: Beta): boolean;
    static fromMeanAndSampleSize({ mean, sampleSize, }: {
        mean: number;
        sampleSize: number;
    }): result<Beta, string>;
    static fromMeanAndStdev({ mean, stdev, }: {
        mean: number;
        stdev: number;
    }): result<Beta, string>;
}
export {};
//# sourceMappingURL=Beta.d.ts.map